Tag: C++ string algorithm

You are given two strings s and t which both have length n. You can pick one character in s and another in t and swap them. Given you …

You are given a string s and two integers i and j where i < j. Let’s say p is an infinite string of s repeating forever. Return the …

Given a string and an integer k, you need to reverse the first k characters for every 2k characters counting from the start of the string. If there are …

For strings S and T, we say “T divides S” if and only if S = T + … + T (T concatenated with itself 1 or more times) …