描述:
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?
思路:
变形的斐波那契
代码:
public int climbStairs(int n) { if(n<3) return n; int arr[]=new int[n+1]; arr[1]=1; arr[2]=2; for(int i=3;i<=n;i++) arr[i]=arr[i-1]+arr[i-2]; return arr[n]; }
结果:
时间: 2024-11-06 20:38:48