def test_build_heap():
print("#test_build_heap")
for x in range(5, 41, 5):
A = shuffled_list(x, x)
heap.buildHeap(A)
print("buildHeap(shuffled_list({}, {})) is a min heap: ".format(x, x),
is_min_heap(A))
def kthSmallest(collection, k): '''Return Kth smallest element in collection for valid k >= 1''' A = collection[:k] heap.buildHeap(A) for i in xrange(k, len(collection)): if collection[i] < A[0]: A[0] = collection[i] heap.heapify(A, 0, k) return A[0]
def report_counts_on_basic_ops(A, expected_build_count, expected_extract_count, expected_insert_count):
print("Counts for list of len: {}".format(len(A)))
heap.reset_counts()
heap.buildHeap(A)
bh = heap.current_counts()['heapify_call_count']
print("buildHeap heapify calls within 20% of expected number of calls: {}".format(within_20_percent(expected_build_count, bh)))
heap.reset_counts()
m = heap.heapExtractMin(A)
ex = heap.current_counts()['heapify_call_count']
print("heapExtractMin heapify calls within 20% of expected number of calls: {}".format(within_20_percent(expected_extract_count, ex)))
heap.reset_counts()
heap.heapInsert(A, m)
ins = heap.current_counts()['swap_count']
print("heapInsert swap calls within 20% of expected number of calls: {}".format(within_20_percent(expected_insert_count, ins)))
import heap
a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
print(f"before building heap {a}")
heap.buildHeap(a)
print(f"after building heap {a}")
print(f"max : {heap.getMax(a)}")
print(f"latest array status {a}")
heap.increaseKey(a, 3, 400)
print(f"latest array status {a}")
heap.increaseKey(a, 8, 30)
print(f"latest array status {a}")
heap.insert(a, 15)
print(f"latest array status {a}")
heap.insert(a, 12)
print(f"latest array status {a}")
heap.insert(a, 500)
print(f"latest array status {a}")
import heap
if __name__ == "__main__":
A = heap.shuffled_list(20, 0)
print("Complete Tree size 20:")
heap.printCompleteTree(A)
heap.buildHeap(A)
print("After Build Heap")
heap.printCompleteTree(A)
print("After heapExtractMin")
heap.heapExtractMin(A)
heap.printCompleteTree(A)
print("After heapInsert")
heap.heapInsert(A, 9)
heap.printCompleteTree(A)
