Light Clean up
This commit is contained in:
Tobias Kessels
805100
6/attempts/6a.ipynb
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805100
6/attempts/6a.ipynb
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787
6/attempts/6b.ipynb
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787
6/attempts/6b.ipynb
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{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": 155,
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"metadata": {},
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"outputs": [],
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"source": [
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"#import lru cache decorator\n",
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"from functools import lru_cache\n",
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"from copy import deepcopy\n",
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"\n",
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"\n",
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"def load_map(file_path='testinput'):\n",
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" with open(file_path, 'r') as file:\n",
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" content = file.readlines()\n",
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" return [list(line.strip()) for line in content]\n",
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"\n",
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"def get_map():\n",
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" return deepcopy(load_map())"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 156,
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"metadata": {},
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"outputs": [],
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"source": [
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"emptymap = load_map()\n",
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"map = load_map()"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 157,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Position: (6, 4) facing ^.\n"
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]
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},
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{
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"data": {
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"text/plain": [
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"(6, 4, '^')"
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]
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},
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"execution_count": 157,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"def get_start_position(map):\n",
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" for x, row in enumerate(map):\n",
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" for dir in ['^', '<', '>', 'V']:\n",
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" if dir in row:\n",
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" y = row.index(dir)\n",
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" pos = (x, y, dir)\n",
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" print(f\"Position: ({pos[0]}, {pos[1]}) facing {pos[2]}.\")\n",
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" return pos\n",
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"\n",
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" return None\n",
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"\n",
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"\n",
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"get_start_position(map)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 158,
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"metadata": {},
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"outputs": [],
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"source": [
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"def printmap(map):\n",
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" for row in map:\n",
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" print(''.join(row))\n",
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"\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 159,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"....#.....\n",
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".........#\n",
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"..........\n",
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"..#.......\n",
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".......#..\n",
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"..........\n",
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".#..^.....\n",
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"........#.\n",
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"#.........\n",
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"......#...\n"
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]
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}
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],
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"source": [
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"printmap(load_map())"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 160,
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"(5, 4)"
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]
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},
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"execution_count": 160,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"def calculate_next_position(x, y, dir):\n",
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" if dir == '^':\n",
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" return (x - 1, y)\n",
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" elif dir == '<':\n",
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" return (x, y - 1)\n",
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" elif dir == '>':\n",
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" return (x, y + 1)\n",
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" elif dir == 'V':\n",
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" return (x + 1, y)\n",
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"\n",
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"def rotate(dir):\n",
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" if dir == '^':\n",
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" return '>'\n",
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" elif dir == '<':\n",
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" return '^'\n",
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" elif dir == '>':\n",
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" return 'V'\n",
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" elif dir == 'V':\n",
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" return '<'\n",
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"\n",
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"def in_bounds(map, x, y):\n",
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" return 0 <= x < len(map) and 0 <= y < len(map[0])\n",
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"\n",
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"calculate_next_position(6, 4, '^')"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 161,
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"metadata": {},
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"outputs": [],
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"source": [
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"class LoopDetected(Exception):\n",
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" pass\n",
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"\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 162,
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"metadata": {},
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"outputs": [],
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"source": [
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"def move(map, pos=None, visited=None):\n",
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" # Initialize visited list if not provided\n",
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" if visited is None:\n",
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" visited = []\n",
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" history = deepcopy(visited)\n",
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" # Get the current position and direction if not provided\n",
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" if pos is None:\n",
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" pos = get_start_position(map)\n",
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" \n",
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" \n",
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" if pos:\n",
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" x, y, dir = pos \n",
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"\n",
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" new_x, new_y = calculate_next_position(*pos)\n",
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"\n",
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" # Handle obstacles by rotating until an open path is found\n",
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" while in_bounds(map, new_x, new_y) and map[new_x][new_y] == '#':\n",
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" dir = rotate(dir) # Rotate direction\n",
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" new_x, new_y = calculate_next_position(x, y, dir)\n",
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"\n",
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" # Move to the new position if valid, otherwise return None\n",
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" if in_bounds(map, new_x, new_y) and map[new_x][new_y] != '#':\n",
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" pos = (new_x,new_y,dir)\n",
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" history.append(pos)\n",
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" else:\n",
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" pos = None\n",
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"\n",
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" \n",
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" # No valid move was possible or guard is out of bounds\n",
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" return pos, history\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 163,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"....#.....\n",
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".........#\n",
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"..........\n",
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"..#.......\n",
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".......#..\n",
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"..........\n",
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".#..^.....\n",
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"........#.\n",
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"#.........\n",
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"......#...\n"
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]
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}
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],
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"source": [
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"printmap(map)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 164,
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"metadata": {},
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"outputs": [],
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"source": [
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"def merge_element(new,old):\n",
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"\n",
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" mergetable = {\n",
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" # Straight line merges\n",
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" ('─', '─'): '─',\n",
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" ('│', '│'): '│',\n",
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" ('─', '│'): '┼',\n",
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" ('│', '─'): '┼',\n",
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"\n",
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" # Corners with straight lines\n",
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" ('─', '┌'): '┬',\n",
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" ('─', '┐'): '┬',\n",
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" ('─', '└'): '┴',\n",
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" ('─', '┘'): '┴',\n",
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" ('│', '┌'): '├',\n",
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" ('│', '┐'): '┤',\n",
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" ('│', '└'): '├',\n",
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" ('│', '┘'): '┤',\n",
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"\n",
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" # Corners with corners\n",
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" ('┌', '┐'): '┬',\n",
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" ('┌', '└'): '├',\n",
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" ('┌', '┘'): '┼',\n",
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" ('┐', '└'): '┼',\n",
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" ('┐', '┘'): '┤',\n",
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" ('└', '┘'): '┴',\n",
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"\n",
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" # Straight lines with T-junctions\n",
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" ('─', '┬'): '┬',\n",
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" ('─', '┴'): '┴',\n",
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" ('─', '├'): '┼',\n",
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" ('─', '┤'): '┼',\n",
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" ('│', '┬'): '┼',\n",
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" ('│', '┴'): '┼',\n",
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" ('│', '├'): '├',\n",
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" ('│', '┤'): '┤',\n",
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"\n",
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" # Corners with T-junctions\n",
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" ('┌', '┬'): '┬',\n",
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" ('┌', '┴'): '├',\n",
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" ('┌', '├'): '├',\n",
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" ('┌', '┤'): '┼',\n",
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" ('┐', '┬'): '┬',\n",
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" ('┐', '┴'): '┤',\n",
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" ('┐', '├'): '┼',\n",
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" ('┐', '┤'): '┤',\n",
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" ('└', '┬'): '├',\n",
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" ('└', '┴'): '┴',\n",
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" ('└', '├'): '├',\n",
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" ('└', '┤'): '┼',\n",
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" ('┘', '┬'): '┤',\n",
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" ('┘', '┴'): '┴',\n",
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" ('┘', '├'): '┼',\n",
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" ('┘', '┤'): '┤',\n",
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"\n",
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" # T-junctions with T-junctions\n",
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" ('┬', '┬'): '┬',\n",
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" ('┬', '┴'): '┼',\n",
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" ('┬', '├'): '┼',\n",
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" ('┬', '┤'): '┼',\n",
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" ('┴', '┴'): '┴',\n",
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" ('┴', '├'): '┼',\n",
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" ('┴', '┤'): '┼',\n",
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" ('├', '├'): '├',\n",
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" ('├', '┤'): '┼',\n",
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" ('┤', '┤'): '┤',\n",
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"\n",
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" # Full crossings\n",
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" ('─', '┼'): '┼',\n",
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" ('│', '┼'): '┼',\n",
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" ('┌', '┼'): '┼',\n",
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" ('┐', '┼'): '┼',\n",
|
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" ('└', '┼'): '┼',\n",
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" ('┘', '┼'): '┼',\n",
|
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" ('┬', '┼'): '┼',\n",
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" ('┴', '┼'): '┼',\n",
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" ('├', '┼'): '┼',\n",
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" ('┤', '┼'): '┼',\n",
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" ('┼', '┼'): '┼',\n",
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" }\n",
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"\n",
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" if old and new:\n",
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" if (old,new) in mergetable:\n",
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" return mergetable[(old,new)]\n",
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" if (new,old) in mergetable:\n",
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" return mergetable[(new,old)]\n",
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" if new:\n",
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" return new\n",
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" return old\n",
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"\n",
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"def get_draw_element(current_dir, new_dir, existing_symbol=None):\n",
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" direction_merge = {\n",
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" # Straight Movements\n",
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" ('^', '^'): '│', # Continue moving up\n",
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" ('V', 'V'): '│', # Continue moving down\n",
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" ('<', '<'): '─', # Continue moving left\n",
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" ('>', '>'): '─', # Continue moving right\n",
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"\n",
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" # Turns from Up ('^')\n",
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" ('^', '>'): '┌', # Turn right from up\n",
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" ('^', '<'): '┐', # Turn left from up\n",
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"\n",
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" # Turns from Down ('v')\n",
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" ('V', '>'): '└', # Turn right from down\n",
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" ('V', '<'): '┘', # Turn left from down\n",
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"\n",
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" # Turns from Left ('<')\n",
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" ('<', '^'): '└', # Turn up from left\n",
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" ('<', 'V'): '┌', # Turn down from left\n",
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"\n",
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" # Turns from Right ('>')\n",
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" ('>', '^'): '┘', # Turn up from right\n",
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" ('>', 'V'): '┐', # Turn down from right\n",
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"\n",
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" # Reverse Movements\n",
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" ('^', 'V'): '│', # Reverse direction (up to down)\n",
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" ('V', '^'): '│', # Reverse direction (down to up)\n",
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" ('<', '>'): '─', # Reverse direction (left to right)\n",
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" ('>', '<'): '─', # Reverse direction (right to left)\n",
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" }\n",
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||||
" return merge_element(direction_merge[(current_dir,new_dir)],existing_symbol)\n",
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"\n",
|
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"def drawroute(map,visited):\n",
|
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" temp_map = deepcopy(map)\n",
|
||||
" for cur,new in zip(visited,visited[1:]):\n",
|
||||
" if cur is None or new is None:\n",
|
||||
" raise ValueError(f\"visited had a None entry! cur:{cur} new:{new}\")\n",
|
||||
" if len(new) <3:\n",
|
||||
" raise ValueError(f\"visited had a malformed entry : cur:{cur}\")\n",
|
||||
" x,y,dir = cur\n",
|
||||
" nx,ny,ndir = new\n",
|
||||
" temp_map[x][y] = get_draw_element(dir,ndir,temp_map[x][y])\n",
|
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" \n",
|
||||
" temp_map[nx][ny] = get_draw_element(ndir,ndir) # Mark start point\n",
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"\n",
|
||||
" printmap(temp_map)\n",
|
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"\n"
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||||
]
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||||
},
|
||||
{
|
||||
"cell_type": "code",
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"execution_count": 165,
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"metadata": {},
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||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"Position: (6, 4) facing ^.\n",
|
||||
"....#.....\n",
|
||||
".........#\n",
|
||||
"..........\n",
|
||||
"..#.......\n",
|
||||
".......#..\n",
|
||||
"..........\n",
|
||||
".#..^.....\n",
|
||||
"........#.\n",
|
||||
"#.........\n",
|
||||
"......#...\n",
|
||||
"....#.....\n",
|
||||
"....┌───┐#\n",
|
||||
"....│...│.\n",
|
||||
"..#.│...│.\n",
|
||||
"..┌─┼─┐#│.\n",
|
||||
"..│.│.│.│.\n",
|
||||
".#└───┼─┘.\n",
|
||||
".┌────┼┐#.\n",
|
||||
"#└────┘│..\n",
|
||||
"......#│..\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"pos,visited = move(map)\n",
|
||||
"printmap(map)\n",
|
||||
"\n",
|
||||
"while pos:\n",
|
||||
" pos,visited = move(map,pos,visited)\n",
|
||||
"\n",
|
||||
"drawroute(map,visited)\n",
|
||||
"\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 166,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"(41, 44)"
|
||||
]
|
||||
},
|
||||
"execution_count": 166,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"def count_visited(visited):\n",
|
||||
" visited = set([(x,y) for x,y,dir in visited]) # Convert list to set to remove duplicates\n",
|
||||
" return len(visited)\n",
|
||||
"\n",
|
||||
"count_visited(visited), len(visited)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 99,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"[34]"
|
||||
]
|
||||
},
|
||||
"execution_count": 99,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"[idx for idx,(x,y,d) in enumerate(visited) if x == 8 and y ==1]"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": []
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 100,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"((8, 2, '<'), (8, 1, '<'), 32, 44)"
|
||||
]
|
||||
},
|
||||
"execution_count": 100,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"\n",
|
||||
"test_position = 34\n",
|
||||
"guardposition = visited[test_position-1]\n",
|
||||
"obsticalposition = visited[test_position]\n",
|
||||
"\n",
|
||||
"history = visited[:test_position-2]\n",
|
||||
"guardposition,obsticalposition, len(history), len(visited)\n",
|
||||
"\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 101,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"....#.....\n",
|
||||
".........#\n",
|
||||
"..........\n",
|
||||
"..#.......\n",
|
||||
".......#..\n",
|
||||
"..........\n",
|
||||
".#..^.....\n",
|
||||
"........#.\n",
|
||||
"##........\n",
|
||||
"......#...\n",
|
||||
"....#.....\n",
|
||||
"....┌───┐#\n",
|
||||
"....│...│.\n",
|
||||
"..#.│...│.\n",
|
||||
"..┌─┼─┐#│.\n",
|
||||
"..│.│.│.│.\n",
|
||||
".#└───┼─┘.\n",
|
||||
"......│.#.\n",
|
||||
"##..──┘...\n",
|
||||
"......#...\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"# create copy of map with additional obstacle at pos\n",
|
||||
"def add_obstacle(pos):\n",
|
||||
" # create a copy of the original map\n",
|
||||
" new_map = get_map()\n",
|
||||
" # add the obstacle to the new map\n",
|
||||
" x,y,dir = pos\n",
|
||||
" new_map[x][y] = '#'\n",
|
||||
" return new_map\n",
|
||||
"\n",
|
||||
"testmap = add_obstacle(obsticalposition)\n",
|
||||
"printmap(testmap)\n",
|
||||
"drawroute(testmap,history)\n",
|
||||
"pos = guardposition"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 103,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"(7, 2, '^')\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"newpos,newhistory = move(testmap,guardposition,history)\n",
|
||||
"print(newpos)\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 106,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"....#.....\n",
|
||||
"....┌───┐#\n",
|
||||
"....│...│.\n",
|
||||
"..#.│...│.\n",
|
||||
"..┌─┼─┐#│.\n",
|
||||
"..│.│.│.│.\n",
|
||||
".#└───┼─┘.\n",
|
||||
"......│.#.\n",
|
||||
"##..──┘...\n",
|
||||
"......#...\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"drawroute(testmap,history)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 143,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"....#.....\n",
|
||||
"....┌───┐#\n",
|
||||
"....│...│.\n",
|
||||
"..#.│...│.\n",
|
||||
"..┌─┼─┐#│.\n",
|
||||
"..│.│.│.│.\n",
|
||||
".#├───┼─┘.\n",
|
||||
"..│...│.#.\n",
|
||||
"##└─┴─┘...\n",
|
||||
"......#...\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"pos,history = move(testmap,pos,history)\n",
|
||||
"drawroute(testmap,history)\n",
|
||||
"\n",
|
||||
"\n",
|
||||
"\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 168,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"Loop detected with obstacle at (4, 4, '^')\n",
|
||||
"Loop detected with obstacle at (3, 4, '^')\n",
|
||||
"Loop detected with obstacle at (2, 4, '^')\n",
|
||||
"Loop detected with obstacle at (1, 4, '^')\n",
|
||||
"Loop detected with obstacle at (1, 5, '>')\n",
|
||||
"Loop detected with obstacle at (1, 6, '>')\n",
|
||||
"Loop detected with obstacle at (1, 7, '>')\n",
|
||||
"Loop detected with obstacle at (1, 8, '>')\n",
|
||||
"Loop detected with obstacle at (2, 8, 'V')\n",
|
||||
"Loop detected with obstacle at (3, 8, 'V')\n",
|
||||
"Loop detected with obstacle at (4, 8, 'V')\n",
|
||||
"Loop detected with obstacle at (5, 8, 'V')\n",
|
||||
"Loop detected with obstacle at (6, 8, 'V')\n",
|
||||
"Loop detected with obstacle at (6, 7, '<')\n",
|
||||
"Loop detected with obstacle at (6, 6, '<')\n",
|
||||
"Loop detected with obstacle at (6, 5, '<')\n",
|
||||
"Loop detected with obstacle at (6, 4, '<')\n",
|
||||
"Loop detected with obstacle at (6, 3, '<')\n",
|
||||
"Loop detected with obstacle at (6, 2, '<')\n",
|
||||
"Loop detected with obstacle at (5, 2, '^')\n",
|
||||
"Loop detected with obstacle at (4, 2, '^')\n",
|
||||
"Loop detected with obstacle at (4, 3, '>')\n",
|
||||
"Loop detected with obstacle at (4, 4, '>')\n",
|
||||
"Loop detected with obstacle at (4, 5, '>')\n",
|
||||
"Loop detected with obstacle at (4, 6, '>')\n",
|
||||
"Loop detected with obstacle at (5, 6, 'V')\n",
|
||||
"Loop detected with obstacle at (6, 6, 'V')\n",
|
||||
"Loop detected with obstacle at (7, 6, 'V')\n",
|
||||
"Loop detected with obstacle at (8, 6, 'V')\n",
|
||||
"Loop detected with obstacle at (8, 5, '<')\n",
|
||||
"Loop detected with obstacle at (8, 4, '<')\n",
|
||||
"Loop detected with obstacle at (8, 3, '<')\n",
|
||||
"Loop detected with obstacle at (8, 2, '<')\n",
|
||||
"Loop detected with obstacle at (8, 1, '<')\n",
|
||||
"Loop detected with obstacle at (7, 1, '^')\n",
|
||||
"Loop detected with obstacle at (7, 2, '>')\n",
|
||||
"Loop detected with obstacle at (7, 3, '>')\n",
|
||||
"Loop detected with obstacle at (7, 4, '>')\n",
|
||||
"Loop detected with obstacle at (7, 5, '>')\n",
|
||||
"Loop detected with obstacle at (7, 6, '>')\n",
|
||||
"Loop detected with obstacle at (7, 7, '>')\n",
|
||||
"Loop detected with obstacle at (8, 7, 'V')\n",
|
||||
"Loop detected with obstacle at (9, 7, 'V')\n",
|
||||
"Total loop positions: 43\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"[(4, 4, '^'),\n",
|
||||
" (3, 4, '^'),\n",
|
||||
" (2, 4, '^'),\n",
|
||||
" (1, 4, '^'),\n",
|
||||
" (1, 5, '>'),\n",
|
||||
" (1, 6, '>'),\n",
|
||||
" (1, 7, '>'),\n",
|
||||
" (1, 8, '>'),\n",
|
||||
" (2, 8, 'V'),\n",
|
||||
" (3, 8, 'V'),\n",
|
||||
" (4, 8, 'V'),\n",
|
||||
" (5, 8, 'V'),\n",
|
||||
" (6, 8, 'V'),\n",
|
||||
" (6, 7, '<'),\n",
|
||||
" (6, 6, '<'),\n",
|
||||
" (6, 5, '<'),\n",
|
||||
" (6, 4, '<'),\n",
|
||||
" (6, 3, '<'),\n",
|
||||
" (6, 2, '<'),\n",
|
||||
" (5, 2, '^'),\n",
|
||||
" (4, 2, '^'),\n",
|
||||
" (4, 3, '>'),\n",
|
||||
" (4, 4, '>'),\n",
|
||||
" (4, 5, '>'),\n",
|
||||
" (4, 6, '>'),\n",
|
||||
" (5, 6, 'V'),\n",
|
||||
" (6, 6, 'V'),\n",
|
||||
" (7, 6, 'V'),\n",
|
||||
" (8, 6, 'V'),\n",
|
||||
" (8, 5, '<'),\n",
|
||||
" (8, 4, '<'),\n",
|
||||
" (8, 3, '<'),\n",
|
||||
" (8, 2, '<'),\n",
|
||||
" (8, 1, '<'),\n",
|
||||
" (7, 1, '^'),\n",
|
||||
" (7, 2, '>'),\n",
|
||||
" (7, 3, '>'),\n",
|
||||
" (7, 4, '>'),\n",
|
||||
" (7, 5, '>'),\n",
|
||||
" (7, 6, '>'),\n",
|
||||
" (7, 7, '>'),\n",
|
||||
" (8, 7, 'V'),\n",
|
||||
" (9, 7, 'V')]"
|
||||
]
|
||||
},
|
||||
"execution_count": 168,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"def find_loops(map, visited):\n",
|
||||
" loop_positions = [] # Array to store positions leading to loops\n",
|
||||
" \n",
|
||||
" for idx, obstacle_position in enumerate(visited[1:]): # Skip the starting position\n",
|
||||
" # Determine the position before the obstacle\n",
|
||||
" if idx == 0:\n",
|
||||
" guard_start_position = visited[0]\n",
|
||||
" else:\n",
|
||||
" guard_start_position = visited[idx - 1]\n",
|
||||
" \n",
|
||||
" # Create a new map with the obstacle added\n",
|
||||
" test_map = add_obstacle(obstacle_position)\n",
|
||||
" \n",
|
||||
" # Initialize history from the visited list up to the current index\n",
|
||||
" history = deepcopy(visited[:idx])\n",
|
||||
" \n",
|
||||
" # Start simulation\n",
|
||||
" pos = guard_start_position\n",
|
||||
" while pos and pos not in history:\n",
|
||||
" pos, history = move(test_map, pos, history)\n",
|
||||
" \n",
|
||||
" # Check if a loop was detected\n",
|
||||
" if pos and pos in history:\n",
|
||||
" loop_positions.append(obstacle_position)\n",
|
||||
" print(f\"Loop detected with obstacle at {obstacle_position}\")\n",
|
||||
" \n",
|
||||
" print(f\"Total loop positions: {len(loop_positions)}\")\n",
|
||||
" return loop_positions\n",
|
||||
"\n",
|
||||
"find_loops(map,visited)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": []
|
||||
}
|
||||
],
|
||||
"metadata": {
|
||||
"kernelspec": {
|
||||
"display_name": "Python 3",
|
||||
"language": "python",
|
||||
"name": "python3"
|
||||
},
|
||||
"language_info": {
|
||||
"codemirror_mode": {
|
||||
"name": "ipython",
|
||||
"version": 3
|
||||
},
|
||||
"file_extension": ".py",
|
||||
"mimetype": "text/x-python",
|
||||
"name": "python",
|
||||
"nbconvert_exporter": "python",
|
||||
"pygments_lexer": "ipython3",
|
||||
"version": "3.12.8"
|
||||
}
|
||||
},
|
||||
"nbformat": 4,
|
||||
"nbformat_minor": 2
|
||||
}
|
||||
465
6/attempts/6c.ipynb
Normal file
465
6/attempts/6c.ipynb
Normal file
@@ -0,0 +1,465 @@
|
||||
{
|
||||
"cells": [
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 14,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"with open('testinput', 'r') as file:\n",
|
||||
" content = file.readlines()\n",
|
||||
"\n",
|
||||
"map = [list(line.strip()) for line in content]\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 15,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def get_start_position(map):\n",
|
||||
" for i, row in enumerate(map):\n",
|
||||
" for dir in ['^', '<', '>', 'V']:\n",
|
||||
" if dir in row:\n",
|
||||
" return (i, row.index(dir), dir)\n",
|
||||
" return -1,-1,None\n",
|
||||
"\n",
|
||||
"\n",
|
||||
"start_x,start_y,start_dir = get_start_position(map)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 16,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"Position: (6, 4) facing ^, sofar visited 0 cells.\n",
|
||||
"....#.....\n",
|
||||
".........#\n",
|
||||
"..........\n",
|
||||
"..#.......\n",
|
||||
".......#..\n",
|
||||
"..........\n",
|
||||
".#..^.....\n",
|
||||
"........#.\n",
|
||||
"#.........\n",
|
||||
"......#...\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"def count_visited(map):\n",
|
||||
" return sum(row.count('X') for row in map)\n",
|
||||
"\n",
|
||||
"def printmap(map):\n",
|
||||
" x, y, dir = get_start_position(map)\n",
|
||||
" if dir:\n",
|
||||
" print(f\"Position: ({x}, {y}) facing {dir}, sofar visited {count_visited(map)} cells.\")\n",
|
||||
" else:\n",
|
||||
" print(f\"No guard found! Visited {count_visited(map)} cells.\")\n",
|
||||
" for row in map:\n",
|
||||
" print(''.join(row))\n",
|
||||
"\n",
|
||||
"\n",
|
||||
"printmap(map)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 17,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"(5, 4)"
|
||||
]
|
||||
},
|
||||
"execution_count": 17,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"def calculate_next_position(x, y, dir):\n",
|
||||
" if dir == '^':\n",
|
||||
" return (x - 1, y)\n",
|
||||
" elif dir == '<':\n",
|
||||
" return (x, y - 1)\n",
|
||||
" elif dir == '>':\n",
|
||||
" return (x, y + 1)\n",
|
||||
" elif dir == 'V':\n",
|
||||
" return (x + 1, y)\n",
|
||||
"\n",
|
||||
"def in_bounds(map, x, y):\n",
|
||||
" return 0 <= x < len(map) and 0 <= y < len(map[0])\n",
|
||||
"\n",
|
||||
"calculate_next_position(6, 4, '^')"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 18,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"def move(map,pos=None):\n",
|
||||
" # Get the current position of the robot\n",
|
||||
" if pos is None:\n",
|
||||
" x, y, dir = get_start_position(map)\n",
|
||||
" elif len(pos)==3:\n",
|
||||
" x,y, dir = pos\n",
|
||||
" else:\n",
|
||||
" raise ValueError()\n",
|
||||
" \n",
|
||||
" if in_bounds(map,x,y):\n",
|
||||
" map[x][y] = 'X'\n",
|
||||
"\n",
|
||||
" if dir:\n",
|
||||
" # Determine the next position based on the current direction\n",
|
||||
" new_x, new_y = calculate_next_position(x, y, dir)\n",
|
||||
" # while new position is obstacle turn right and recalculate the next position\n",
|
||||
" while in_bounds(map,new_x,new_y) and map[new_x][new_y] == '#':\n",
|
||||
" if dir == '^':\n",
|
||||
" dir = '>'\n",
|
||||
" elif dir == '<':\n",
|
||||
" dir = '^'\n",
|
||||
" elif dir == '>':\n",
|
||||
" dir = 'V'\n",
|
||||
" elif dir == 'V':\n",
|
||||
" dir = '<'\n",
|
||||
" new_x, new_y = calculate_next_position(x, y, dir)\n",
|
||||
" # Update the map with the robot's new position and direction\n",
|
||||
" if in_bounds(map,new_x,new_y):\n",
|
||||
" map[new_x][new_y] = dir\n",
|
||||
" return True, (new_x,new_y,dir)\n",
|
||||
" \n",
|
||||
" else:\n",
|
||||
" print(f\"No guard found! Visited {count_visited(map)} cells.\")\n",
|
||||
" return False, (-1,-1,dir)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 19,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"Position: (5, 4) facing ^, sofar visited 1 cells.\n",
|
||||
"....#.....\n",
|
||||
".........#\n",
|
||||
"..........\n",
|
||||
"..#.......\n",
|
||||
".......#..\n",
|
||||
"....^.....\n",
|
||||
".#..X.....\n",
|
||||
"........#.\n",
|
||||
"#.........\n",
|
||||
"......#...\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"data": {
|
||||
"text/plain": [
|
||||
"(True, (5, 4, '^'))"
|
||||
]
|
||||
},
|
||||
"execution_count": 19,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"result,pos = move(map)\n",
|
||||
"printmap(map)\n",
|
||||
"result,pos"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 20,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"True\n",
|
||||
"No guard found! Visited 41 cells.\n",
|
||||
"....#.....\n",
|
||||
"....XXXXX#\n",
|
||||
"....X...X.\n",
|
||||
"..#.X...X.\n",
|
||||
"..XXXXX#X.\n",
|
||||
"..X.X.X.X.\n",
|
||||
".#XXXXXXX.\n",
|
||||
".XXXXXXX#.\n",
|
||||
"#XXXXXXX..\n",
|
||||
"......#X..\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"print(result)\n",
|
||||
"while result:\n",
|
||||
" result,pos = move(map,pos)\n",
|
||||
"\n",
|
||||
"printmap(map)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 21,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"No guard found! Visited 41 cells.\n",
|
||||
"....#.....\n",
|
||||
"....XXXXX#\n",
|
||||
"....X...X.\n",
|
||||
"..#.X...X.\n",
|
||||
"..XXXXX#X.\n",
|
||||
"..X.X.X.X.\n",
|
||||
".#XXXXXXX.\n",
|
||||
".XXXXXXX#.\n",
|
||||
"#XXXXXXX..\n",
|
||||
"......#X..\n",
|
||||
"Position: (6, 4) facing ^, sofar visited 0 cells.\n",
|
||||
"....#.....\n",
|
||||
".........#\n",
|
||||
"..........\n",
|
||||
"..#.......\n",
|
||||
".......#..\n",
|
||||
"..........\n",
|
||||
".#..^.....\n",
|
||||
"........#.\n",
|
||||
"#.........\n",
|
||||
"......#...\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"finished_map = map.copy()\n",
|
||||
"map = [list(line.strip()) for line in content]\n",
|
||||
"printmap(finished_map)\n",
|
||||
"printmap(map)\n",
|
||||
"\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 22,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"{(3, 4), (4, 3), (5, 4), (4, 6), (8, 3), (8, 6), (1, 6), (2, 8), (7, 4), (6, 2), (7, 1), (7, 7), (6, 5), (6, 8), (4, 2), (4, 5), (5, 6), (4, 8), (8, 2), (9, 7), (8, 5), (2, 4), (1, 5), (1, 8), (7, 3), (6, 7), (7, 6), (5, 2), (4, 4), (3, 8), (8, 4), (5, 8), (8, 1), (8, 7), (1, 4), (1, 7), (7, 2), (6, 6), (7, 5), (6, 3)}\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"#Prepare list of possible positions for a obstiacle to force guard into a loop and check if it causes a loop\n",
|
||||
"def get_visited_positions(map):\n",
|
||||
" visited = set()\n",
|
||||
" for i, row in enumerate(map):\n",
|
||||
" for j, cell in enumerate(row):\n",
|
||||
" if cell == 'X':\n",
|
||||
" if (i,j) != (start_x,start_y): #ignore the starting position\n",
|
||||
" visited.add((i,j))\n",
|
||||
" return visited\n",
|
||||
"\n",
|
||||
"print(get_visited_positions(finished_map))"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 23,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"# create copy of map with additional obstacle at pos\n",
|
||||
"def add_obstacle(map, pos):\n",
|
||||
" # create a copy of the original map\n",
|
||||
" new_map = [row[:] for row in map]\n",
|
||||
" # add the obstacle to the new map\n",
|
||||
" new_map[pos[0]][pos[1]] = '#'\n",
|
||||
" return new_map\n",
|
||||
"\n",
|
||||
"def check_loop(emptymap,pos):\n",
|
||||
" #make copy of map\n",
|
||||
" map = add_obstacle(emptymap,pos)\n",
|
||||
" # create a set to keep track of visited positions and directions\n",
|
||||
" visited = set()\n",
|
||||
" # Get the current position of the robot\n",
|
||||
" x,y,dir = get_start_position(map)\n",
|
||||
" while dir and (x,y,dir) not in visited:\n",
|
||||
" visited.add((x,y,dir))\n",
|
||||
" # Determine the next position based on the current direction\n",
|
||||
" result,pos = move(map,(x,y,dir))\n",
|
||||
" x,y,dir = pos\n",
|
||||
" \n",
|
||||
" if dir and (x,y,dir) in visited:\n",
|
||||
" print(f\"Found loop with {len(visited)} with obstical at {pos}\")\n",
|
||||
" return True\n",
|
||||
" else:\n",
|
||||
" print(f\"No loop found after {len(visited)} visited positions.\")\n",
|
||||
" return False\n"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": 24,
|
||||
"metadata": {},
|
||||
"outputs": [
|
||||
{
|
||||
"name": "stdout",
|
||||
"output_type": "stream",
|
||||
"text": [
|
||||
"Found loop with 24 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (3, 4)\n",
|
||||
"Found loop with 29 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (4, 3)\n",
|
||||
"Found loop with 7 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (5, 4)\n",
|
||||
"Found loop with 32 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (4, 6)\n",
|
||||
"Found loop with 34 with obstical at (6, 4, '^')\n",
|
||||
"Loop detected at position (8, 3)\n",
|
||||
"Found loop with 37 with obstical at (-1, -1, '<')\n",
|
||||
"Loop detected at position (8, 6)\n",
|
||||
"Found loop with 16 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (1, 6)\n",
|
||||
"Found loop with 19 with obstical at (-1, -1, '<')\n",
|
||||
"Loop detected at position (2, 8)\n",
|
||||
"Found loop with 42 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (7, 4)\n",
|
||||
"Found loop with 27 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (6, 2)\n",
|
||||
"Found loop with 45 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (7, 1)\n",
|
||||
"Found loop with 42 with obstical at (8, 6, 'V')\n",
|
||||
"Loop detected at position (7, 7)\n",
|
||||
"Found loop with 24 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (6, 5)\n",
|
||||
"Found loop with 23 with obstical at (-1, -1, '<')\n",
|
||||
"Loop detected at position (6, 8)\n",
|
||||
"Found loop with 30 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (4, 2)\n",
|
||||
"Found loop with 31 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (4, 5)\n",
|
||||
"Found loop with 34 with obstical at (-1, -1, '<')\n",
|
||||
"Loop detected at position (5, 6)\n",
|
||||
"Found loop with 21 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (4, 8)\n",
|
||||
"Found loop with 43 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (8, 2)\n",
|
||||
"Found loop with 45 with obstical at (8, 5, '<')\n",
|
||||
"Loop detected at position (9, 7)\n",
|
||||
"Found loop with 40 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (8, 5)\n",
|
||||
"Found loop with 10 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (2, 4)\n",
|
||||
"Found loop with 15 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (1, 5)\n",
|
||||
"Found loop with 19 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (1, 8)\n",
|
||||
"Found loop with 41 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (7, 3)\n",
|
||||
"Found loop with 22 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (6, 7)\n",
|
||||
"Found loop with 29 with obstical at (6, 5, '<')\n",
|
||||
"Loop detected at position (7, 6)\n",
|
||||
"Found loop with 29 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (5, 2)\n",
|
||||
"Found loop with 8 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (4, 4)\n",
|
||||
"Found loop with 20 with obstical at (-1, -1, '<')\n",
|
||||
"Loop detected at position (3, 8)\n",
|
||||
"Found loop with 41 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (8, 4)\n",
|
||||
"Found loop with 18 with obstical at (-1, -1, '^')\n",
|
||||
"Loop detected at position (5, 8)\n",
|
||||
"Found loop with 37 with obstical at (5, 2, '^')\n",
|
||||
"Loop detected at position (8, 1)\n",
|
||||
"Found loop with 51 with obstical at (-1, -1, '<')\n",
|
||||
"Loop detected at position (8, 7)\n",
|
||||
"Found loop with 11 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (1, 4)\n",
|
||||
"Found loop with 30 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (1, 7)\n",
|
||||
"Found loop with 40 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (7, 2)\n",
|
||||
"Found loop with 20 with obstical at (-1, -1, '>')\n",
|
||||
"Loop detected at position (6, 6)\n",
|
||||
"Found loop with 43 with obstical at (-1, -1, 'V')\n",
|
||||
"Loop detected at position (7, 5)\n",
|
||||
"Found loop with 19 with obstical at (5, 4, '^')\n",
|
||||
"Loop detected at position (6, 3)\n",
|
||||
"Possible loops: 40\n"
|
||||
]
|
||||
}
|
||||
],
|
||||
"source": [
|
||||
"\n",
|
||||
"#Check if a loop is formed by placing an obstacle in one of the visited positions\n",
|
||||
"possibles_loops = []\n",
|
||||
"for pos in get_visited_positions(finished_map):\n",
|
||||
" if check_loop(map,pos):\n",
|
||||
" print(f\"Loop detected at position {pos}\")\n",
|
||||
" possibles_loops.append(pos)\n",
|
||||
"\n",
|
||||
"print(f\"Possible loops: {len(possibles_loops)}\")"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": [
|
||||
"printmap(map)"
|
||||
]
|
||||
},
|
||||
{
|
||||
"cell_type": "code",
|
||||
"execution_count": null,
|
||||
"metadata": {},
|
||||
"outputs": [],
|
||||
"source": []
|
||||
}
|
||||
],
|
||||
"metadata": {
|
||||
"kernelspec": {
|
||||
"display_name": "Python 3",
|
||||
"language": "python",
|
||||
"name": "python3"
|
||||
},
|
||||
"language_info": {
|
||||
"codemirror_mode": {
|
||||
"name": "ipython",
|
||||
"version": 3
|
||||
},
|
||||
"file_extension": ".py",
|
||||
"mimetype": "text/x-python",
|
||||
"name": "python",
|
||||
"nbconvert_exporter": "python",
|
||||
"pygments_lexer": "ipython3",
|
||||
"version": "3.12.8"
|
||||
}
|
||||
},
|
||||
"nbformat": 4,
|
||||
"nbformat_minor": 2
|
||||
}
|
||||
Reference in New Issue
Block a user