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Given the string s. Find a maximum integer k such that there is a non-empty substring in the string s that is a concatenation of
k equal strings. This problem is from: https://mirror.codeforces.com/edu/course/2/lesson/2/5/practice/contest/269656/problem/F
|s| <= 4e5
Thanks!
Just find all runs of string. With, for example, Crochemore's algo.