竞争性编程简单

平铺问题

“平铺问题”问题的详细指南和 Python 实现。

问题陈述

简单

编写一个函数 tiling_ways(n),返回使用 2x1 多米诺骨牌平铺 2xn 板的方式数。多米诺骨牌可以垂直或水平放置。

约束条件
  • 1 <= n <= 50

示例

Example 1
Input
tiling_ways(3)
Output
3
Explanation

For a 2x3 board, there are 3 ways: 3 vertical tiles, or 1 vertical and 2 horizontal tiles (in two configurations).

Example 2
Input
tiling_ways(4)
Output
5
Explanation

For a 2x4 board, there are 5 ways to tile it.

Need a Hint?
考虑使用动态编程特定的数据结构,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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