Compilare: main.cpp: In function 'void solve()': main.cpp:38:56: 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] 38 | while (1LL * numere[poz] * numere[poz] <= n && poz < numere.size()) | ~~~~^~~~~~~~~~~~~~~ main.cpp: At global scope: main.cpp:59:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 59 | main () | ^~~~