40 lines
1.1 KiB
JavaScript
40 lines
1.1 KiB
JavaScript
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import { readFileSync } from "fs";
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const input = readFileSync("stacks.txt", "utf-8");
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const stacks = [];
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for(let i = 0; i < 9; i++) stacks[i] = [];
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const offset = 4;
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let isStackInsertingDone = false, tmp;
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input.split('\n').forEach(line => {
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if(line === '') {
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isStackInsertingDone = true;
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for(let i = 0; i < 9; i++) {
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stacks[i].pop();
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tmp = "";
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while(stacks[i].length > 0) tmp += stacks[i].pop();
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for(let j = 0; j < tmp.length; j++) stacks[i].push(tmp.charAt(j));
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}
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} else if(!isStackInsertingDone) {
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for(let i = 0; i < 9; i++) {
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const char = line.charAt(1 + (i * offset));
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if(char !== ' ') stacks[i].push(char);
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}
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} else {
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const splitLine = line.split(' ');
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const howMany = parseInt(splitLine[1]), from = parseInt(splitLine[3]) - 1, to = parseInt(splitLine[5]) - 1;
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for(let i = 0; i < howMany; i++) {
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stacks[to].push(stacks[from].pop());
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}
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}
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});
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let out = "";
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for(let i = 0; i < 9; i++) out += stacks[i].pop();
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console.log(out);
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