Compilare: main.cpp: In function 'int main()': main.cpp:26:19: 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] 26 | for(int i=0;i < s.size();i++){ | ~~^~~~~~~~~~ main.cpp:32:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i=0;i < v.size();i++){ | ~~^~~~~~~~~~