19 lines
414 B
JavaScript
19 lines
414 B
JavaScript
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#!/usr/bin/env node
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const list1=[];
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const list2=[];
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require('fs').readFileSync('input.txt','utf8').split('\n').filter(i=>i).forEach(line=>{
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const parts = line.split(' ').map(i=>parseInt(i));
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list1.push(parts[0]);
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list2.push(parts[1]);
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});
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const counts = require('lodash').countBy(list2);
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var absurdscore=0;
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for(let num of list1) {
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absurdscore+=num*(counts[num]||0);
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}
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console.log('Result:',absurdscore);
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