再求f(x,n)
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Description
已知
用递归函数求解。
## Input Format
第一数是x的值，第二个数是n的值。
Output Format
函数值。
1 2
0.40
You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.
已知
用递归函数求解。
## Input Format
第一数是x的值，第二个数是n的值。
函数值。
1 2
0.40