Leetcode 678. Valid Parenthesis String (greedy)
16:54
Leetcode 28. Find the Index of the First Occurrence in a String (kmp with example)
20:40
Leetcode 638. Shopping Offers (bit dp)
13:36
Leetcode 911. Online Election (binary search)
23:57
Leetcode 855. Exam Room (sorted list)
10:39
Leetcode 780. Reaching Points (mod)
10:11
Leetcode 686. Repeated String Match (kmp)
9:33
Leetcode 400. Nth Digit (math)
13:19