Compilare: main.cpp: In function 'void popHeap()': main.cpp:50:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(p < heap.size()){ ~~^~~~~~~~~~~~~ main.cpp:54:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p * 2 + 1 < heap.size() && heap[p * 2 + 1] < heap[fiu]){ ~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:57:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p * 2 + 2 < heap.size() && heap[p * 2 + 2] < heap[fiu]){ ~~~~~~~~~~^~~~~~~~~~~~~