Python 基础知识简单

是否闰年

“是否闰年”问题的详细指南和 Python 实现。

问题陈述

简单

编写一个函数 is_leap_year(year) ,它接受整数 year ,如果年份是闰年,则返回 True ,否则返回 False 。如果一年能被 4 整除但不能被 100 整除,则该年份为闰年,但能被 400 整除的年份除外。

约束条件
  • 1 <= year <= 10^5

示例

Example 1
Input
year = 2024
Output
True
Explanation

2024 is divisible by 4 and not by 100, so it is a leap year.

Example 2
Input
year = 1900
Output
False
Explanation

1900 is divisible by 100 but not by 400, so it is not a leap year.

Example 3
Input
year = 2000
Output
True
Explanation

2000 is divisible by 400, so it is a leap year.

Need a Hint?
考虑使用特定于基础的数据结构,例如集合或堆。
Edge Cases to Watch
  • 空输入结构
  • 单元素输入
  • 大数值范围

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