Leetcode 979 Solution

This article provides solution to leetcode question 979 (di-string-match)
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https://leetcode.com/problems/di-string-match

Solution

class Solution:
    def diStringMatch(self, S: str) -> List[int]:
        l = 0
        r = len(S)
        i = 0



        ans = []
        while l < r:
            if S[i] == 'I':
                ans.append(l)
                l += 1
            else:
                ans.append(r)
                r -= 1
            i += 1
        ans.append(l)
        return ans