Compilare: main.cpp: In function 'int main()': main.cpp:90:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(int f = 0 ; f < v.size() ; f ++) | ~~^~~~~~~~~~ main.cpp:98:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 98 | for(int f = 0 ; f < fin.size() ; f ++) | ~~^~~~~~~~~~~~