Compilare: main.cpp: In member function 'void MinHeap::heapifyDown(long long int)': main.cpp:29:26: 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] 29 | if (left < heap.size() && heap[left] < heap[smallest]) { | ~~~~~^~~~~~~~~~~~~ main.cpp:32:27: 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] 32 | if (right < heap.size() && heap[right] < heap[smallest]) { | ~~~~~~^~~~~~~~~~~~~ main.cpp: In member function 'void MinHeap::push(long long int)': main.cpp:49:29: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 49 | if (heap.size() < size) { | ~~~~~~~~~~~~^~~~~~