Compilare: main.cpp: In function 'void solve(int)': main.cpp:49:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | while(nr!=1&&ind<prime.size()) | ~~~^~~~~~~~~~~~~ main.cpp:59:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | if(nr>1&&ind==prime.size()) | ~~~^~~~~~~~~~~~~~