HDU 2041--超级楼梯(递推求解)

 1 #include<iostream>
 2 #include<cmath>
 3 #include<algorithm>
 4 using namespace std;
 5 
 6 
 7 int main()
 8 {
 9           int n;
10           cin>>n;
11           while(n--)
12           {
13                     int t;
14                     cin>>t;
15                     int a[50];
16                     a[1] = 1;
17                     a[2] = 2;
18                     for(int i = 3;i<t;i++)
19                               a[i] = a[i-1]+a[i-2];
20                     cout<<a[t-1]<<endl;
21           }
22 
23 }