Search
⌘K
Get Premium
Leetcode 2262. Total Appeal of A String
Compute the sum of distinct-character counts for all substrings of a lowercase string s (n up to 1e5). The challenge is to avoid O(n^2) brute force by using a contribution-counting technique that accumulates how many substrings each character occurrence uniquely contributes to.
Question Timeline
See when this question was last asked and where, including any notes left by other candidates.
All Regions
Comments
Hello Interview Premium
Your account is free and you can post anonymously if you choose.