Solution: Total Appeal of a String
Explore an efficient approach to calculate a string's total appeal by leveraging hash maps to track character occurrences. This lesson teaches how to sum the unique character counts across all substrings with a time complexity of O(n), enabling improved problem-solving skills for string manipulation tasks.
We'll cover the following...
We'll cover the following...
Statement
Given a string s, return its total appeal, which is calculated by summing the appeals of all its
The appeal of a string is defined as the count of unique characters present in that string.
For instance, the appeal of “xyzxz” is