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LeetCode solutions

1775. Design an Ordered Stream

My accepted Python solution to LeetCode problem 1775, Design an Ordered Stream, running in 19ms.

  • Difficulty: Easy
  • Python
  • Runtime 19ms
  • Memory 18.4MB

Read the problem on LeetCode View on GitHub

The problem statement is LeetCode’s and stays on their site. What follows is my accepted solution.

Python

Accepted on LeetCode — runtime 19ms, memory 18.4MB, accepted 2025-12-30.

python
class OrderedStream:

    def __init__(self, n: int):
        self.stream = [None] * (n + 1)
        self.ptr = 1

    def insert(self, idKey: int, value: str) -> List[str]:
        self.stream[idKey] = value
        result = []
        while self.ptr < len(self.stream) and self.stream[self.ptr]:
            result.append(self.stream[self.ptr])
            self.ptr += 1
        return result

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