Compilare: main.cpp: In function 'void coboara(int)': main.cpp:33:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz * 2 + 1 >= heap.size()) return; ~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:35:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz * 2 + 2 >= heap.size() || heap[poz * 2 + 1] < heap[poz * 2 + 2]) ~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:35:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(poz * 2 + 2 >= heap.size() || heap[poz * 2 + 1] < heap[poz * 2 + 2]) ^