Compilare: user.cpp: In static member function ‘static void HeapClass::downheap(int)’: user.cpp:56:13: warning: unused variable ‘temp’ [-Wunused-variable] int temp; ^ user.cpp: In function ‘int main()’: user.cpp:98:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^ user.cpp:101:58: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &j, &_muchie.x, &_muchie.c); ^