题解 | #N阶楼梯上楼问题#
N阶楼梯上楼问题
https://www.nowcoder.com/practice/c978e3375b404d598f1808e4f89ac551
#include<iostream>
using namespace std;
int main(){
int n;
while(cin >> n){
int dp[n + 1];
dp[0] = 0, dp[1] = 1, dp[2] = 2;
for(int i = 3; i <= n; i++){
dp[i] = dp[i - 1] + dp[i - 2];
}
cout << dp[n] << endl;
}
return 0;
}
