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Solution: Custom Sort String

Explore how to solve the custom sort string problem by counting character frequencies with hash maps and reconstructing the string in the specified order. This lesson helps you implement an efficient solution and understand its time and space complexity in C#.

Statement

Given two strings, order and s, where all characters in order are unique and arranged in a custom order, return any permutation of s that satisfies the following condition:

The characters in the permuted s should appear in the same relative order as they do in order. Specifically, if a character x appears before a character y in order, then x must also appear before y in the permuted string.

Constraints:

  • 11 \leq ...