Compilare: main.cpp: In function 'long long int pinex(long long int)': main.cpp:14:22: 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] 14 | for(j = 0; j < divi.size(); j++){ // 2 ^ j = bit-ul | ~~^~~~~~~~~~~~~