Compilare: main.cpp: In function 'void delet(int)': main.cpp:44:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos==heap.size()) return; ~~~^~~~~~~~~~~~~ main.cpp:46:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(2*pos<heap.size() && (heap[2*pos]<heap[pos] || heap[2*pos+1]<heap[pos])){ ~~~~~^~~~~~~~~~~~ main.cpp:48:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(2*pos<heap.size() && 2*pos+1<heap.size()){ ~~~~~^~~~~~~~~~~~ main.cpp:48:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(2*pos<heap.size() && 2*pos+1<heap.size()){ ~~~~~~~^~~~~~~~~~~~