Compilare: main.cpp: In function 'void solve()': main.cpp:46:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | for(int pos = 0; pos < divizori.size(); pos++) | ~~~~^~~~~~~~~~~~~~~~~ main.cpp: In instantiation of 'eratostene<N, Arr>::eratostene() [with long unsigned int N = 1000005; Arr = std::bitset<1000005>]': main.cpp:24:40: required from here main.cpp:11:34: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare] 11 | for(int i = 4; i < N; i += 2) arr[i] = true; | ~~^~~ main.cpp:12:34: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare] 12 | for(int i = 3; i < N; i += 2) { | ~~^~~ main.cpp:15:66: warning: comparison of integer expressions of different signedness: 'long long int' and 'long unsigned int' [-Wsign-compare] 15 | for(long long j = 1LL * i * i; j < N; j += 2 * i) | ~~^~~