Compilare: main.cpp: In function 'bool ok(long long int)': main.cpp:38:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare] 38 | for (int i = 0; i < s.size() - dist + 1; ++i) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:85:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for (int i = 0; i < s.size(); ++i, p = p * 71 % MOD) | ~~^~~~~~~~~~