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Problem S: 17-函数和递归-再求f(x,n)
Problem S: 17-函数和递归-再求f(x,n)
Time Limit:
1 Sec
Memory Limit:
128 MB
Submit:
43
Solved:
34
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Description
用递归函数求解。
Input
第一数是x的值,第二个数是n的值。'
Output
函数值,保留两位小数。
Sample Input
1 2
Sample Output
0.40
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