Compilare: main.cpp: In function 'int main()': main.cpp:53:39: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 53 | for(int i = 1; i <= M and ARB.size() < N; ++i) | ~~~~~~~~~~~^~~ main.cpp:65:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int i = 0; i < ARB.size(); i++) | ~~^~~~~~~~~~~~