假设你正在爬楼梯。需要 n 阶你才能到达楼顶。 每次你可以爬 1 或 2 个台阶。你有多少种不同的方法可以爬到楼顶呢? 解决方案 方法一:暴力法 算法 在暴力法中,我们将会把所有可能爬的阶数进行组合,也就是 1 和 2 。而在每一步中我们都会继续调用 climbStairsclimbStairs 这个函数模拟爬 11 阶和22 阶的情...
LeetCode——70. Climbing Stairs 70. Climbing Stairs You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top? Note: Given n ......
代码(Python3) class Solution: def climbStairs(self, n: int) -> int: # dp[i] 表示上到第 i 级楼梯的方法数 dp: List[int] = [0] * (n + 1) # 最开始在第 0 级和第 1 级各有一种方案 dp[0], dp[1] = 1, 1 for i in range(2, n + 1): #第 i 级可以从第 i - 1 级...
LeetCode 70. Climbing Stairs LeetCode 70. Climbing Stairs 题目描述: 假设你正在爬楼梯。需要 n 阶你才能到达楼顶。 每次你可以爬 1 或 2 个台阶。你有多少种不同的方法可以爬到楼顶呢? 注意:给定 n 是一个正整数。 示例 1: 输入: 2 输出: 2 解释: 有两种方法可以爬到楼顶。 1 阶 + 1 阶 2...
[LeetCode]题解(python):070-Climbing Stairs 题目来源: https://leetcode.com/problems/climbing-stairs/ 题意分析: 爬楼梯,一次可以爬一步或者两步。如果要爬n层,问一共有多少种爬法。比如说,如果是3层,可以有[[1,1,1],[1,2],[2,1]]共3种方法。
LeetCode 0070. Climbing Stairs爬楼梯【Easy】【Python】【动态规划】 Problem LeetCode You are climbing a stair case. It takesnsteps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
来自专栏 · 刻意练习之LeetCode 70. Climbing Stairs 问题描述 爬台阶,n个台阶达到山顶:每次只能前进1步或2步。 问:共计有多少种不同的方法,可以攀登到山顶? 测试样例 输入:2,输出:2。解释:1)1step+1step;2)2steps,共计2种方式; 输入:3,输出:3。解释:1)1step+1step+1step;2)...
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Can you solve this real interview question? Climbing Stairs - You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top? Example 1: Input: n = 2
leetcode -- Climbing Stairs -- 简单重要 简单的dp思路 d[n] = d[n - 1] + d[n - 2] class Solution(object): def climbStairs(self, n): """ :type n: int :rtype: int """ d = [0,1,2] for i in xrange(3,n + 1):...