Compilare: main.cpp: In member function 'void Heap::movedown(int)': main.cpp:56:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Heap::Node>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | while(node < heap.size()){ | ~~~~~^~~~~~~~~~~~~ main.cpp:59:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Heap::Node>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | if (node * 2 + 1 < heap.size() && heap[node * 2 + 1] < heap[child]){ | ~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:62:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Heap::Node>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | if (node * 2 + 2 < heap.size() && heap[node * 2 + 2] < heap[child]){ | ~~~~~~~~~~~~~^~~~~~~~~~~~~