Compilare: main.cpp: In function 'bool superprim(long long int)': main.cpp:28:23: 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] 28 | for (int i = 0; i < v.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'long long int nr(long long int)': main.cpp:48:23: 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] 48 | for (int i = 0; i < v.size(); i ++) | ~~^~~~~~~~~~ main.cpp:57:27: 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] 57 | for (int i = 0; i < v.size(); i ++) | ~~^~~~~~~~~~