Compilare: user.c: In function ‘sort’: user.c:37:101: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while((heap[i] < heap[2 * i] && i <= n / 2) || (heap[i] < heap[2 * i + 1] && 2 * i + 1 <=n) && i <= n / 2){ ^ user.c: In function ‘heapify’: user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.c:11:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&heap[1]); ^ user.c:14:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&heap[i]); ^