Compilare: main.cpp: In function 'void rebuild()': main.cpp:41:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | while(g==0 && parent<=H.size()-1) | ~~~~~~^~~~~~~~~~~~ main.cpp:46:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | if(child1<=H.size()-1) | ~~~~~~^~~~~~~~~~~~ main.cpp:49:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if(child2<=H.size()-1) | ~~~~~~^~~~~~~~~~~~ main.cpp: In function 'void Dijkastra(int)': main.cpp:70:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int i=0;i<V[vertex].size();i++) | ~^~~~~~~~~~~~~~~~~