75 lines
1.5 KiB
JavaScript
75 lines
1.5 KiB
JavaScript
'use strict';
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const fs = require('fs');
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process.stdin.resume();
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process.stdin.setEncoding('utf-8');
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let inputString = '';
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let currentLine = 0;
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process.stdin.on('data', function(inputStdin) {
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console.log(`Data: ${inputStdin}`);
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inputString += inputStdin;
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});
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process.stdin.on('end', function() {
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console.log(`End`);
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inputString = inputString.split('\r\n');
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main();
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});
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process.on('SIGINT', function() {
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console.log('SIGINT');
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inputString = inputString.split('\r\n');
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main();
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process.exit(0);
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});
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function readLine() {
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return inputString[currentLine++];
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}
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/*
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* Complete the 'repeatedString' function below.
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*
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* The function is expected to return a LONG_INTEGER.
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* The function accepts following parameters:
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* 1. STRING s
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* 2. LONG_INTEGER n
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*/
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function repeatedString(s, n) {
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let sl = s.length;
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console.log(`S: ${sl}, n: ${n}`);
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let counts = new Array(sl+1);
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counts[0] = 0;
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for (let i = 1; i < counts.length; i++) {
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counts[i] = s[i-1] === 'a' ? counts[i-1] + 1 : counts[i-1];
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}
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console.log('Counts', counts);
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let c = Math.floor(n / sl);
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let r = n % sl;
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return counts[sl] * c + counts[r];
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}
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function main() {
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const ws = fs.createWriteStream(process.env.OUTPUT_PATH);
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const s = readLine();
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const n = parseInt(readLine().trim(), 10);
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const result = repeatedString(s, n);
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console.log(`Result ${result}`);
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ws.write(result + '\n');
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ws.end();
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}
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