Compilare: main.cpp: In function 'void dfs(int)': main.cpp:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i = 0; i < adj[v].size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(j = 0; j < adj[i].size(); j++){ | ~~^~~~~~~~~~~~~~~ main.cpp:69:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for(int j = 0; j < adjnew[i].size(); j++){ | ~~^~~~~~~~~~~~~~~~~~ main.cpp:79:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int j = 0; j < adjnew2[i].size(); j++){ | ~~^~~~~~~~~~~~~~~~~~~