Compilare: main.cpp: In function 'int find(int)': main.cpp:18:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:31:9: warning: unused variable 'ni' [-Wunused-variable] 31 | int ni,j,k,l,m,n,i,a,b; | ^~ main.cpp:31:12: warning: unused variable 'j' [-Wunused-variable] 31 | int ni,j,k,l,m,n,i,a,b; | ^ main.cpp:31:14: warning: unused variable 'k' [-Wunused-variable] 31 | int ni,j,k,l,m,n,i,a,b; | ^ main.cpp:31:16: warning: unused variable 'l' [-Wunused-variable] 31 | int ni,j,k,l,m,n,i,a,b; | ^