Compilare: main.cpp: In function 'void down(int)': main.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | while(2 * pos < heap.size()) | ~~~~~~~~^~~~~~~~~~~~~ main.cpp:36:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | if(2 * pos + 1 < heap.size() && heap[min_fiu] > heap[2 * pos + 1]) | ~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'int minim()': main.cpp:68:1: warning: control reaches end of non-void function [-Wreturn-type] 68 | } | ^