Compilare: main.cpp: In member function 'void Graf::BFS()': main.cpp:68:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i = 0; i < A[x].size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp: In member function 'void Graf::DFS(int, bool*)': main.cpp:94:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | for(int i = 0; i < A[start].size(); i++){ | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:202:15: warning: unused variable 'S' [-Wunused-variable] 202 | int N, M, S; | ^