Add Solution for 9
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Tobias Kessels committed
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@@ -0,0 +1,268 @@
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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": 26,
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"metadata": {
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"id": "CdxCMssgVGSz"
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},
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"outputs": [],
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"source": [
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"with open('input', 'r') as infile:\n",
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" input = infile.read().strip()\n",
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"#input = r'''2333133121414131402'''\n",
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"#input"
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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": 27,
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"metadata": {
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"id": "-T-QxruZkBUl"
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},
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"outputs": [],
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"source": [
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"def expand(diskmap):\n",
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" expanded_output = []\n",
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" for idx,char in enumerate(diskmap):\n",
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" id = idx//2 if (idx%2) == 0 else -(idx//2)-1\n",
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" length = int(char)\n",
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" expanded_output.append((id,length))\n",
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" return expanded_output\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": 28,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "nsDNp82qk4pE",
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"outputId": "0478d7c1-d327-4d01-dd05-852dd1d7c54f"
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},
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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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"0.....111111.......222222.........33333........444444445.....66......77.........88......99999999.101010101010101010111111.......121212.........131313.....141414141414......151515151515151515........161616....17171717....18.1919..202020202020.......21.222222222222....2323232323232323....242424....252525.....2626262626.........27272727......2828282828282828.....292929292929292929....303030303030.313131.......323232323232..33333333333333...3434343434.......35..363636363636.........373737373737373737..3838........393939...40404040404040.....4141414141.....424242424242424242........434343.........44.....45454545454545.46...4747474747....484848.....4949495050505050505050...51515151515151.......5252525252525252.535353.545454545454545454....555555555555........5656565656565656..57575757575757.........585858585858595959595959595959........6060606060606060.....6161616161....6262626262626262........6363636363......646464646464646464......656565656565.....66666666666666........6767676767.686868686868686868....696969696969696969.........7070707070...717171717171.........7272727273...74747474747474...7575757575......76767676767676767677...787878787878.....79797979......8080808080......81818181.....8282828282828282828383838383....848484...8585....868686...878787878787878787.888888888888.....898989898989.....90909090909090.919191.92...9393939393........94949494........95959595959595.....969696969696969696.97979797979797979898989898989898.....99999999999999.........100101101101101101101.........102102102102102......103103103103103103103103103......104104104104104104104.........105105105105106106....107107107107107107107....108108108108108108109109109109109109109109......110110110110110110110110110....111111111111112112112112112112112112112.113113113113113113113113....114114.........115115115115115115115115115..116116116116...117117117117117118118118118118118118.......119.120..121121121121121121121..122.......123123123123123123123124124124124.....125125125125125125126126126126126126126126......127127127127.......128128128128........129129129129129129129........130130130130130130130131131131........132132132132132132132132132........133134.....135135135135135135..136136136136136136.........137137137137137......138138138138....139139139139139139139........140140........141.......142142142142142142142142..143143143143143143143....144144144144144144......145145145145145145145145...146146...147147147147...148148148148148........149149149149149149.150150150150150150150150150.151151151151151151151151151.152152152152......153153153153153153153154154154154154154154....155..156156156156156157157.....158158158158158158...159159159159.....160160160......161161161161.162162.....163163163163163163163.....164........165165165165165165........166166166166..167167167167167..168168.....169.........170....171171171171..172........173173173173173........174174174.........175175175175175175175175.......176176176176176176176176...177177177177177177177..178178178178178178178......179179179179179179179179180180180180180180180.........181181181181.....182182182182182......183183183183183183183183183.........184184184184184184184...185185185185185185185186186186186186..187187187187187187.....188188..189189189189189......190190190190191......192192.....193....194194........195.......196197197197197197197.....198198198198198198198198........199199199199199199.200200200200200......201201201.202202202202202202202202202.203203......204204204204204......205205205205.206206206206206206206206206...207207207207207207207208208208208208208.........209209209..210210......211211211211211..212212212212212212212..213........214214214214214..215215215215........216216216216216216216216.217217217217217217217..218218218218.........219219220220220220220220220220..221221221221.......222222222222222222222222.....223223223223223223223223223.224224224224224....225225225225225225225225........226226......227227227227227227......228228228228228228228228228..229..230230230230230230.........231231231231231231.232232232232........233233233233233233..234234...235235235235235235235235236236236236.237.238238238238...239239239239239.....240240240240240240240240240241241241241241241.......242242242242242242........243......244.........245245245245245245245245245....246246246246246........247247247.......248.....249249249249....250250250250250250250250.251251251251251...252252252252252..253253...254254254..255255255255255255255255255..256256256256..257257.....258258258258..259259259259259259.........260260.........261261.262262262262262262..263263263263263263263263.........264264264264264264264...265265265265265265...266........267267267267267..268268268..269270....271271271271.......272272272272272.....273273273273273273273..274274274274274274274......275275275275275275275275..276276276...277277277.....278278278.279279279279279279279279...280280280280280280280.......281282282282282282282.........283283283283283283284284284284284284.......2852852852852852852852862862862862862Line truncated
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]
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}
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],
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"source": [
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"def printdisk(diskmap):\n",
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" for element in diskmap:\n",
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" char = \".\" if element[0] < 0 else f\"{element[0]}\"\n",
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" print(f\"{char*element[1]}\",end=\"\")\n",
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"\n",
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"printdisk(expand(input))"
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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": 29,
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"metadata": {
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"id": "7DDQ6sMNmYD-"
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},
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"outputs": [],
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"source": [
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"def defrag(diskmap):\n",
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" while diskmap:\n",
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" current = diskmap.pop(0)\n",
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" if current[0] >= 0:\n",
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" yield current\n",
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" elif current[0] < 0: #empty > try to fill in\n",
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" if diskmap:\n",
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" last = diskmap.pop(-1) # pop last\n",
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" if last[0] >= 0: # if data\n",
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" yield (last[0],min(current[1],last[1])) # yield as much data as fits in the gap\n",
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" if current[1] > last[1]: # put rest of empty back on front\n",
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" diskmap.insert(0,(-1,current[1]-last[1]))\n",
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" elif current[1] < last[1]: # put rest of data back at end\n",
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" diskmap.append((last[0],last[1]-current[1]))\n",
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" elif last[0]<0: # if last is empty > discard empty put back data and retry\n",
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" diskmap.insert(0,current)"
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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": 30,
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"metadata": {
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"id": "ylVF3ucJ-hVd"
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},
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"outputs": [],
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"source": [
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"def checksum(diskmap):\n",
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" values = [value for value, count in diskmap for _ in range(count)]\n",
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" return sum([i*x for i,x in enumerate(values) if x>0])"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "geM-oK32TyGe"
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},
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"source": []
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "wgvPNj8WT6jY"
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},
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"source": [
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"# Solution for first part"
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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": 31,
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"metadata": {
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"colab": {
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"base_uri": "https://localhost:8080/"
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},
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"id": "IpLDHvcE1YIa",
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"outputId": "7821df1c-38a3-42c0-95a2-b09f59b71766"
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},
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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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"0.....111111.......222222.........33333........444444445.....66......77.........88......99999999.101010101010101010111111.......121212.........131313.....141414141414......151515151515151515........161616....17171717....18.1919..202020202020.......21.222222222222....2323232323232323....242424....252525.....2626262626.........27272727......2828282828282828.....292929292929292929....303030303030.313131.......323232323232..33333333333333...3434343434.......35..363636363636.........373737373737373737..3838........393939...40404040404040.....4141414141.....424242424242424242........434343.........44.....45454545454545.46...4747474747....484848.....4949495050505050505050...51515151515151.......5252525252525252.535353.545454545454545454....555555555555........5656565656565656..57575757575757.........585858585858595959595959595959........6060606060606060.....6161616161....6262626262626262........6363636363......646464646464646464......656565656565.....66666666666666........6767676767.686868686868686868....696969696969696969.........7070707070...717171717171.........7272727273...74747474747474...7575757575......76767676767676767677...787878787878.....79797979......8080808080......81818181.....8282828282828282828383838383....848484...8585....868686...878787878787878787.888888888888.....898989898989.....90909090909090.919191.92...9393939393........94949494........95959595959595.....969696969696969696.97979797979797979898989898989898.....99999999999999.........100101101101101101101.........102102102102102......103103103103103103103103103......104104104104104104104.........105105105105106106....107107107107107107107....108108108108108108109109109109109109109109......110110110110110110110110110....111111111111112112112112112112112112112.113113113113113113113113....114114.........115115115115115115115115115..116116116116...117117117117117118118118118118118118.......119.120..121121121121121121121..122.......123123123123123123123124124124124.....125125125125125125126126126126126126126126......127127127127.......128128128128........129129129129129129129........130130130130130130130131131131........132132132132132132132132132........133134.....135135135135135135..136136136136136136.........137137137137137......138138138138....139139139139139139139........140140........141.......142142142142142142142142..143143143143143143143....144144144144144144......145145145145145145145145...146146...147147147147...148148148148148........149149149149149149.150150150150150150150150150.151151151151151151151151151.152152152152......153153153153153153153154154154154154154154....155..156156156156156157157.....158158158158158158...159159159159.....160160160......161161161161.162162.....163163163163163163163.....164........165165165165165165........166166166166..167167167167167..168168.....169.........170....171171171171..172........173173173173173........174174174.........175175175175175175175175.......176176176176176176176176...177177177177177177177..178178178178178178178......179179179179179179179179180180180180180180180.........181181181181.....182182182182182......183183183183183183183183183.........184184184184184184184...185185185185185185185186186186186186..187187187187187187.....188188..189189189189189......190190190190191......192192.....193....194194........195.......196197197197197197197.....198198198198198198198198........199199199199199199.200200200200200......201201201.202202202202202202202202202.203203......204204204204204......205205205205.206206206206206206206206206...207207207207207207207208208208208208208.........209209209..210210......211211211211211..212212212212212212212..213........214214214214214..215215215215........216216216216216216216216.217217217217217217217..218218218218.........219219220220220220220220220220..221221221221.......222222222222222222222222.....223223223223223223223223223.224224224224224....225225225225225225225225........226226......227227227227227227......228228228228228228228228228..229..230230230230230230.........231231231231231231.232232232232........233233233233233233..234234...235235235235235235235235236236236236.237.238238238238...239239239239239.....240240240240240240240240240241241241241241241.......242242242242242242........243......244.........245245245245245245245245245....246246246246246........247247247.......248.....249249249249....250250250250250250250250.251251251251251...252252252252252..253253...254254254..255255255255255255255255255..256256256256..257257.....258258258258..259259259259259259.........260260.........261261.262262262262262262..263263263263263263263263.........264264264264264264264...265265265265265265...266........267267267267267..268268268..269270....271271271271.......272272272272272.....273273273273273273273..274274274274274274274......275275275275275275275275..276276276...277277277.....278278278.279279279279279279279279...280280280280280280280.......281282282282282282282.........283283283283283283284284284284284284.......2852852852852852852852862862862862862Line truncated
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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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"6399153661894"
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]
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},
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"execution_count": 31,
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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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"a = expand(input)\n",
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"printdisk(a)\n",
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"b=[x for x in defrag(a)]\n",
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"printdisk(b)\n",
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"checksum(b)\n"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {
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"id": "n8EQmBtlT8_a"
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},
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"source": [
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"# Second Part"
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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": 32,
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"metadata": {
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"colab": {
|
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"base_uri": "https://localhost:8080/"
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},
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"id": "fsCCqTbXU-1u",
|
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"outputId": "c74ac648-af20-419a-b54a-06f57fc4cb6f"
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},
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"outputs": [],
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"source": [
|
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"def get_empty(diskmap,size):\n",
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" for idx,element in enumerate(diskmap):\n",
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" if element[0] < 0:\n",
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" if element[1] >= size:\n",
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" return idx,element\n",
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"\n",
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"def defrag_part2(diskmap):\n",
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" data = [x for x in diskmap if x[0]>=0]\n",
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" for dat in reversed(data):\n",
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" min_id = min([x[0] for x in diskmap])-1\n",
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" dat_index = diskmap.index(dat)\n",
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" emtpy = get_empty(diskmap,dat[1])\n",
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" if emtpy:\n",
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" empty_index,empty = emtpy\n",
|
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" if empty_index < dat_index:\n",
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" empty_index = diskmap.index(empty)\n",
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" diskmap.insert(dat_index,(min_id,dat[1]))\n",
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" diskmap.remove(dat)\n",
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" diskmap.remove(empty)\n",
|
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" if empty[1] > dat[1]:\n",
|
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" diskmap.insert(empty_index,(empty[0],empty[1]-dat[1]))\n",
|
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" diskmap.insert(empty_index,dat)"
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]
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},
|
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{
|
||||
"cell_type": "code",
|
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"execution_count": 33,
|
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"metadata": {},
|
||||
"outputs": [],
|
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"source": [
|
||||
"a = expand(input)"
|
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]
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},
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{
|
||||
"cell_type": "code",
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"execution_count": 34,
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"metadata": {},
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"outputs": [],
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"source": [
|
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"defrag_part2(a)"
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]
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},
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{
|
||||
"cell_type": "code",
|
||||
"execution_count": 35,
|
||||
"metadata": {
|
||||
"colab": {
|
||||
"base_uri": "https://localhost:8080/"
|
||||
},
|
||||
"id": "HgXQPF9CeHKF",
|
||||
"outputId": "a04ac99e-fcd2-4d65-b438-7bd2eb78f0b3"
|
||||
},
|
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"outputs": [
|
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{
|
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"data": {
|
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"text/plain": [
|
||||
"6421724645083"
|
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]
|
||||
},
|
||||
"execution_count": 35,
|
||||
"metadata": {},
|
||||
"output_type": "execute_result"
|
||||
}
|
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],
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"source": [
|
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"checksum(a)"
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]
|
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}
|
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],
|
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"metadata": {
|
||||
"colab": {
|
||||
"provenance": []
|
||||
},
|
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"kernelspec": {
|
||||
"display_name": "Python 3",
|
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"name": "python3"
|
||||
},
|
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"language_info": {
|
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"codemirror_mode": {
|
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"name": "ipython",
|
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"version": 3
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},
|
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"file_extension": ".py",
|
||||
"mimetype": "text/x-python",
|
||||
"name": "python",
|
||||
"nbconvert_exporter": "python",
|
||||
"pygments_lexer": "ipython3",
|
||||
"version": "3.8.10"
|
||||
}
|
||||
},
|
||||
"nbformat": 4,
|
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"nbformat_minor": 0
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}
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@@ -0,0 +1 @@
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ine truncated
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Reference in new issue
Block a user