Compilare: main.cpp: In function 'void DFS(int)': main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 0; i < G[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void DFSUtil(int)': main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int i = 0; i < A[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve(int, int)': main.cpp:47:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int i = 0; i < P[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~ main.cpp:53:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 0; i < P[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~