Compilare: main.cpp: In function 'int main()': main.cpp:37:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(i=0;i<v.size();i++) | ~^~~~~~~~~ main.cpp:25:11: warning: unused variable 'j' [-Wunused-variable] 25 | int i,j,x,n; | ^ main.cpp:25:15: warning: unused variable 'n' [-Wunused-variable] 25 | int i,j,x,n; | ^