Compilare: main.cpp: In member function 'void Heap::coboara(long long int)': main.cpp:22:28: 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] 22 | while (poz * 2 + 1 < heap.size()) { | ~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:23:29: 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] 23 | if (poz * 2 + 2 < heap.size()) { | ~~~~~~~~~~~~^~~~~~~~~~~~~