Compilare: main.cpp: In function 'void inmultire(std::vector<long long int>&, std::vector<long long int>&)': main.cpp:19:18: 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] 19 | for(int i=0;i<a.size();i++) | ~^~~~~~~~~ main.cpp:20:22: 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] 20 | for(int j=0;j<b.size();j++) | ~^~~~~~~~~