Compilare: main.cpp: In function 'void coboara(int)': main.cpp:30:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz * 2 + 1 >= heap.size()) ~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:35:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((poz * 2 + 2 == heap.size()) || fiu_st < heap[poz * 2 + 2]) ~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int pop()': main.cpp:74:9: warning: unused variable 'vf' [-Wunused-variable] int vf = heap[0]; ^~ main.cpp: In function 'int main()': main.cpp:110:17: warning: unused variable 'k' [-Wunused-variable] int k; ^ main.cpp:121:22: warning: unused variable 'k' [-Wunused-variable] int k; ^