코딩테스트 준비하기 - 39일차

풀이코드

      function solution(arr) {
        let answer = [];
        let idx;
        let sortedArr = [...arr];
        sortedArr.sort((a, b) => a - b);
        console.log(arr);
        console.log(sortedArr);
        for (let i = 0; i < arr.length; i++) {
          if (arr[i] !== sortedArr[i]) {
            idx = i + 1;
            answer.push(idx);
            console.log(idx, i);
          }
        }
        return answer;
      }

      let arr = [120, 125, 152, 130, 135, 135, 143, 127, 160];
      console.log(solution(arr));