Solution: Isomorphic Strings
Explore how to check whether two strings are isomorphic by implementing hash maps that track character mappings in both directions. This lesson helps you master the logic of fixed character mapping and apply efficient hashing techniques to solve the problem with optimal time and space complexity.
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Statement
Given two strings, check whether two strings are isomorphic to each other or not. Two strings are isomorphic if a fixed mapping exists from the characters of one string to the characters of the other string. For example, if there are two instances of the character "a" in the first string, both these instances should be converted to another character (which could also remain the same character if "a" is mapped to itself) in the second string. This converted character should remain the same in both positions of the second string since there is a fixed mapping from the character "a" in the first string to the converted character in the second string.
Note: Two different characters cannot map to the same character. Furthermore, all the instances of a character must be replaced with another character while protecting the order of characters.
Constraints:
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Both the strings consist of valid ASCII characters.
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The length of the string is ...