func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s;     cin >> s;     int n = s.length(), cur = 1, best = 1;     s += s;     for (size_t i = 1; i < s.size(); i++)       if (s[i] != s[i - 1])         cur++;       else {         best = max(best, cur);         cur = 1;       }     best = max(best, cur);     cout << min(n, best);     return 0;   }   