Compilare: main.cpp: In member function 'void Heap::Sink(int)': main.cpp:67:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(2 * Node + 1 > _heap.size() - 1 && 2 * Node > _heap.size() - 1) ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:67:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(2 * Node + 1 > _heap.size() - 1 && 2 * Node > _heap.size() - 1) ~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:69:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(2 * Node + 1 > _heap.size() - 1 && 2 * Node <= _heap.size() - 1 && _heap[2 * Node].first < _heap[Node].first) ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:69:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(2 * Node + 1 > _heap.size() - 1 && 2 * Node <= _heap.size() - 1 && _heap[2 * Node].first < _heap[Node].first) ~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:79:76: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(_heap[max_value_index].first < _heap[Node].first && max_value_index <= _heap.size() - 1) ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:88:9: warning: unused variable 'debug' [-Wunused-variable] int debug = 0; ^~~~~