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Problem1537--递归-f(n)=1+2+3+4+···+n (n<=50000)
1537: 递归-f(n)=1+2+3+4+···+n (n<=50000)
Time Limit:
1
Sec
Memory Limit:
128 MB
Submit:
161
Solved:
134
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Description
已知函数f(n)=1+2+3+4+···+n;(n<=50000
)
(必须用递归完成)
输入n,求函数的值
输入样例:10
输出样例:55
Source/Category
提高B