Compilare: main.cpp: In function 'void dfs(long long int)': main.cpp:16:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:58:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<operatie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(i=0;i<op.size();i++) | ~^~~~~~~~~~ main.cpp:44:19: warning: unused variable 'j' [-Wunused-variable] 44 | long long n,i,j,k,l,cer,m,index,val,f; | ^ main.cpp:44:21: warning: unused variable 'k' [-Wunused-variable] 44 | long long n,i,j,k,l,cer,m,index,val,f; | ^ main.cpp:44:23: warning: unused variable 'l' [-Wunused-variable] 44 | long long n,i,j,k,l,cer,m,index,val,f; | ^ main.cpp:44:41: warning: unused variable 'f' [-Wunused-variable] 44 | long long n,i,j,k,l,cer,m,index,val,f; | ^