def sift_down_test_3():
heap = MinHeap([10, 20, 25, 12, 30, 25, 28], already_heap=True)
print(f"Original: {heap}")
heap.sift_down(1)
print(heap)
def sift_down_test_4():
heap = MinHeap([70, 20, 25, 22, 30, 25, 28], already_heap=True)
print(f"Original: {heap}")
heap.sift_down(0)
print(heap)
def sift_down_test_1():
heap = MinHeap([10, 20, 25, 22, 30, 25, 28], already_heap=True)
print(f"Original: {heap}")
for i in range(len(heap)):
heap.sift_down(i)
print(heap) # No changes should occur.
