Compilare: main.cpp: In function 'void findPath(int, int, std::vector<std::pair<long long int, int> >&)': main.cpp:24:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i=0;i<result.size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'std::vector<std::pair<long long int, int> > dijk(int)': main.cpp:38:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i=1;i<connections.size();i++) | ~^~~~~~~~~~~~~~~~~~~ main.cpp:53:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 0; i < connections[head].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~