Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:26:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(i=0; i<adj[curr].size(); i++) | ~^~~~~~~~~~~~~~~~~ main.cpp:33:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for(i=0; i<qu[curr].size(); i++) | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:46:13: warning: unused variable 'j' [-Wunused-variable] 46 | int n,i,j,k,l,q,x,a,b; | ^ main.cpp:46:15: warning: unused variable 'k' [-Wunused-variable] 46 | int n,i,j,k,l,q,x,a,b; | ^ main.cpp:46:17: warning: unused variable 'l' [-Wunused-variable] 46 | int n,i,j,k,l,q,x,a,b; | ^