2025-08-15 12:28:53 +0000 UTC

Check if One String Swap Can Make Strings Equal
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Code

class Solution:
    def areAlmostEqual(self, s1: str, s2: str) -> bool:
        if s1 == s2:
            return True
        length = len(s1)
        if length != len(s2):
            return False
        i1, i2 = -1, -1
        for i, (char1, char2) in enumerate(zip(s1, s2)):
            if char1 == char2:
                continue
            if i1 == -1:
                i1 = i
            elif i2 == -1:
                i2 = i
            else:
                return False
        if i2 == -1:
            return False
        return s1[i1] == s2[i2] and s1[i2] == s2[i1]