Compilare: main.cpp: In function 'int main()': main.cpp:134:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 134 | for(int j=0;j<v.size();j++) | ~^~~~~~~~~ main.cpp:86:13: warning: unused variable 'n' [-Wunused-variable] 86 | int n; | ^ main.cpp:88:23: warning: unused variable 'k' [-Wunused-variable] 88 | int m1=0,m2=0,k=0; | ^