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Copy pathanagram.js
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79 lines (65 loc) · 1.67 KB
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'use strict';
const fs = require('fs');
process.stdin.resume();
process.stdin.setEncoding('utf-8');
let inputString = '';
let currentLine = 0;
process.stdin.on('data', inputStdin => {
inputString += inputStdin;
});
process.stdin.on('end', _ => {
inputString = inputString.replace(/\s*$/, '')
.split('\n')
.map(str => str.replace(/\s*$/, ''));
main();
});
function readLine() {
return inputString[currentLine++];
}
// Complete the anagram function below.
// Complete the anagram function below.
function anagram(s) {
if (s.length % 2 !== 0)
return -1;
var obj = {};
for (var i = 0; i < s.length / 2; i++) {
if (typeof obj[s[i]] === 'undefined') {
obj[s[i]] = 1;
} else {
obj[s[i]] = obj[s[i]] + 1;
}
}
var obj2 = {};
for (var i = (s.length / 2); i < s.length; i++) {
if (typeof obj2[s[i]] === 'undefined') {
obj2[s[i]] = 1;
} else {
obj2[s[i]] = obj2[s[i]] + 1;
}
}
// console.log(obj, obj2, count);
for (var i in obj) {
if (typeof obj2[i] !== 'undefined') {
if (obj[i] > obj2[i])
obj2[i] = 0;
else
obj2[i] = obj2[i] - obj[i];
}
}
var count = 0;
for (var i in obj2) {
count += obj2[i];
}
return count;
// console.log(obj, obj2, count);
}
function main() {
const ws = fs.createWriteStream(process.env.OUTPUT_PATH);
const q = parseInt(readLine(), 10);
for (let qItr = 0; qItr < q; qItr++) {
const s = readLine();
let result = anagram(s);
ws.write(result + "\n");
}
ws.end();
}