Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (i = 0; i < adj[node].size() && gasit == false; ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, int)': main.cpp:43:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for (i = 0; i < adj[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:18: warning: unused variable 'j' [-Wunused-variable] 56 | int n, m, i, j, a, b; | ^