Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:17:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:26:1: warning: no return statement in function returning non-void [-Wreturn-type] 26 | } | ^ main.cpp: In function 'int sume(int, int)': main.cpp:31:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:41:1: warning: no return statement in function returning non-void [-Wreturn-type] 41 | } | ^ main.cpp: In function 'int main()': main.cpp:44:13: warning: unused variable 'j' [-Wunused-variable] 44 | int n,i,j,k,a,w; | ^ main.cpp:44:15: warning: unused variable 'k' [-Wunused-variable] 44 | int n,i,j,k,a,w; | ^