Compilare: main.cpp: In function 'void kruskal(std::vector<muchie>&, int&, std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:50:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(int i=0;i<graf.size();i++){ | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:104:17: warning: unused variable 'ok' [-Wunused-variable] 104 | int s=0,ok=0; | ^~ main.cpp: In function 'int bfs(int, int&, std::vector<bool>&, std::vector<std::vector<std::pair<int, int> > >&, int, std::queue<std::pair<int, int> >)': main.cpp:86:1: warning: control reaches end of non-void function [-Wreturn-type] 86 | } | ^