(그리디) 프로그래머스 조이스틱 (level 2)

function solution(name) {
  let answer = 0;
  const length = name.length;

  let unicodeA = 65;
  let unicodeZ = 90;

  for (let i in name) {
    let unicodeAlphabet = Math.abs(unicodeA - name[i].charCodeAt(0)) > 13
    ? Math.abs(unicodeZ - name[i].charCodeAt(0)) + 1
      : Math.abs(unicodeA - name[i].charCodeAt(0));
    answer += unicodeAlphabet;
  }

  let move = length - 1;

  for (let i = 0; i < length; i++) {
    let nextIdx = i + 1
    while (nextIdx < length && name[nextIdx] === 'A') {
      nextIdx++;
    }
    let distance = Math.min(i, length - nextIdx);
    move = Math.min(move, i + length - nextIdx + distance);
  }

  answer += move;
  return answer;
}

console.log('hh', solution('JAN'));