Compilare: main.cpp: In function 'void DFS(int, int, int)': main.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for (int i = 0; i < G[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~ main.cpp:20:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (int i = 0; i < G[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~ main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < G[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void DFSHeavy(int, int, int)': main.cpp:58:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for (int i = 1; i < G[node].size(); ++ i) { | ~~^~~~~~~~~~~~~~~~