题目 |
题目传送门:传送门(点击此处)
题解 |
典型的动态规划问题
class Solution {
public int climbStairs(int n) {
if (n == 1) return 1;
int[] dp = new int[n + 1];
dp[1] = 1;
dp[2] = 2;
for (int i = 3; i <= n; i++)
dp[i] = dp[i - 1] + dp[i - 2];
return dp[n];
}
}