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; }