Submission #2666671

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Source Code Expand

'use strict'

function main(s) {

  s = s.split('\n')[1];

  let str = 'b';
  let ans = '';

  for (let i = 0; i <= 50; i++) {
    if (i === 0) {
      if (str === s) {
        ans = 0;
        break;
      }
    } else {
      if (i % 3 === 1) str = 'a' + str + 'c';
      if (i % 3 === 2) str = 'c' + str + 'a';
      if (i % 3 === 0) str = 'b' + str + 'b';
      if (str === s) ans = i;
    }
  }

  console.log(ans !== '' ? ans : -1);
}

main(require("fs").readFileSync("/dev/stdin", "utf8"));

Submission Info

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