25 lines
659 B
JavaScript
25 lines
659 B
JavaScript
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#!/usr/bin/env node
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var content = require('fs').readFileSync(process.argv[2],'utf8');
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//content = `do()${content}don't()`;
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//var doregex = /do\(\).+don't\(\)/g
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var mulregex = /mul\((\d{1,3}),(\d{1,3})\)/g
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var numregex = /\d+/g
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//var blocks = content.match(doregex);
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function content2sum(content) {
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var muls = content.match(mulregex);
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var sum=0;
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for(var mul of muls) {
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var digits = mul.match(numregex);
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var values = digits.map(i=>parseInt(i));
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//console.log({digits,values});
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sum+=values[0]*values[1];
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}
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return sum;
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}
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var sum=content.split('do()').map(i=>i.split("don't()")[0]).map(content2sum).reduce((a,b)=>a+b);
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console.log('Result:',sum);
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