Class Solution


  • public class Solution
    extends Object
    942 - DI String Match.

    Easy

    A permutation perm of n + 1 integers of all the integers in the range [0, n] can be represented as a string s of length n where:

    • s[i] == 'I' if perm[i] < perm[i + 1], and
    • s[i] == 'D' if perm[i] > perm[i + 1].

    Given a string s, reconstruct the permutation perm and return it. If there are multiple valid permutations perm, return any of them.

    Example 1:

    Input: s = “IDID”

    Output: [0,4,1,3,2]

    Example 2:

    Input: s = “III”

    Output: [0,1,2,3]

    Example 3:

    Input: s = “DDI”

    Output: [3,2,0,1]

    Constraints:

    • 1 <= s.length <= 105
    • s[i] is either 'I' or 'D'.
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • diStringMatch

        public int[] diStringMatch​(String s)