Compilare: main.cpp: In function 'void parse(std::vector<std::pair<pt, long long int> >&)': main.cpp:60:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<pt, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i=2; i<vec.size(); i++){ | ~^~~~~~~~~~~ main.cpp:100:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<pt, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for(int i=2; i<vec.size(); i++){ | ~^~~~~~~~~~~ main.cpp:134:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<pt, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 134 | for(int i=0; i<vec.size(); i++){ | ~^~~~~~~~~~~