Level 5Exercise #102

Push, then pop smallest

Add a value to a heap, then remove and return its smallest value.

What you’ll practice

This Level 5 exercise focuses on heappush + heappop in the Algorithms curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.

Relevant Python reference: heapq — Heap queue algorithm.

Sample Test Cases

Example #1

Input:push_pop(heap=[2,5,8], value=1)

Output:1

Reference Solution

Reveal Reference Solution

def push_pop(heap: list[int], value: int) -> int:
    import heapq
    heapq.heappush(heap, value)
    return heapq.heappop(heap)

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Push, then pop smallest

What you’ll practice

Sample Test Cases

Further Reading

Reference Solution