Compilare: main.cpp: In function 'void bkt(int, int)': main.cpp:37:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | if (index == primeB.size()) | ~~~~~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:73:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | for (int i = 0; i < prime.size(); i++) | ~~^~~~~~~~~~~~~~