Problem B: 斐波那契数列
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:42
Solved:49
Description
用递归函数输出斐波那契数列第n项。0,1,1,2,3,5,8,13……
Input
一个正整数n,表示第n项。
Output
第n项是多少。n<1000
Sample Input Copy
3
Sample Output Copy
1