Permutation Game (logic puzzle).js

const ALPHABET = "abcdefghijklmnopqrstuvwxyz";

const N = 9;
const LIST = new Array(N).fill(undefined);

const RESPONSES = [6,4,0,4,0,0,2,1,0];

for (let i = 0; i < N; i++) {
  let cur_index = -1;
  let free_place_index = 0;

  while (free_place_index <= RESPONSES[i]) {
    cur_index++;
    
    if (LIST[cur_index] !== undefined) {
      continue;
    }

    free_place_index++;
  }

  LIST[cur_index] = ALPHABET[i];
  console.log(LIST);
}

console.log(LIST.join('').toUpperCase());