Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:20:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, int)': main.cpp:106:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | for(i=0;i<qu[curr].size();i++) | ~^~~~~~~~~~~~~~~~ main.cpp:112:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for(i=0;i<resturi.size();i++) | ~^~~~~~~~~~~~~~~ main.cpp:116:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:133:11: warning: unused variable 'j' [-Wunused-variable] 133 | int i,j,k,l,m,a,b,w,cuc,x; | ^ main.cpp:133:13: warning: unused variable 'k' [-Wunused-variable] 133 | int i,j,k,l,m,a,b,w,cuc,x; | ^ main.cpp:133:15: warning: unused variable 'l' [-Wunused-variable] 133 | int i,j,k,l,m,a,b,w,cuc,x; | ^ main.cpp:133:25: warning: unused variable 'cuc' [-Wunused-variable] 133 | int i,j,k,l,m,a,b,w,cuc,x; | ^~~