Compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<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:57:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<operatie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(i=0;i<op.size();i++) | ~^~~~~~~~~~ main.cpp:43:13: warning: unused variable 'j' [-Wunused-variable] 43 | int n,i,j,k,l,cer,m,index,val,f; | ^ main.cpp:43:15: warning: unused variable 'k' [-Wunused-variable] 43 | int n,i,j,k,l,cer,m,index,val,f; | ^ main.cpp:43:17: warning: unused variable 'l' [-Wunused-variable] 43 | int n,i,j,k,l,cer,m,index,val,f; | ^ main.cpp:43:35: warning: variable 'f' set but not used [-Wunused-but-set-variable] 43 | int n,i,j,k,l,cer,m,index,val,f; | ^