Leetcode Problem 1153. String Transforms Into Another String

1153. String Transforms Into Another String

Leetcode Solutions

Greedy Approach with Hashing

  1. Initialize a hashmap conversionMappings to store the character mappings from str1 to str2.
  2. Initialize a hashset uniqueCharactersInStr2 to store the unique characters in str2.
  3. Iterate over the characters in str1.
    • If the current character is not in conversionMappings, add the mapping to conversionMappings and add the corresponding character in str2 to uniqueCharactersInStr2.
    • If the current character is already in conversionMappings but maps to a different character than the current character in str2, return false.
  4. After the iteration, if uniqueCharactersInStr2 contains 26 characters and str1 is not equal to str2, return false. Otherwise, return true.
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