Compilare: main.cpp: In function 'void solutie()': main.cpp:48:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for( int i=0;i<graf.size();++i) | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:68:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i=0;i<v.size();++i) { | ~^~~~~~~~~