Compilare: main.cpp: In function 'void bfs()': main.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(i=0;i<G[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:79:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(i=0;i<G[d].size();i++) | ~^~~~~~~~~~~~ main.cpp:52:34: warning: unused variable 'c' [-Wunused-variable] 52 | int i,m,fluxtotal=0,mini,x,y,c,nod,urm,s,e; | ^