Compilare: main.cpp: In function 'void dfs(int)': main.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (int i = 0; i < adj[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void biconex(int, int)': main.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 0; i < adj[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for (i = 0; i < echipe.size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp:105:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for (i = 0; i < vul.size(); ++i) | ~~^~~~~~~~~~~~ main.cpp:73:18: warning: unused variable 'j' [-Wunused-variable] 73 | int n, m, i, j, x, y; | ^