Compilare: main.cpp: In function 'bool bfs()': main.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i = 0; i < G[nod].size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:75:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(int k = 0; k < G[i].size(); k++) { | ~~^~~~~~~~~~~~~