Compilare: main.cpp: In function 'void pop(int)': main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | while(pos * 2 < heap.size()) | ~~~~~~~~^~~~~~~~~~~~~ main.cpp:62:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | if(pos * 2 + 1 < heap.size() && v[heap[pos]] > v[heap[pos * 2 + 1]] && v[heap[pos * 2 + 1]] < v[heap[pos * 2]]) | ~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:12: warning: unused variable 'i' [-Wunused-variable] 78 | int m, i, op, x; | ^