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Problem1163--阿克曼(Ackmann)函数
1163: 阿克曼(Ackmann)函数
Time Limit:
1 Sec
Memory Limit:
128 MB
Submit:
2
Solved:
2
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Description
阿克曼(Ackmann)函数A(m,n)中,m,n定义域是非负整数(m≤3,n≤10),函数值定义为:
akm(m,n) = n+1; (m=0时)
akm(m,n) = akm(m-1,1); (m>0,n=0时)
akm(m,n) = akm(m-1,akm(m, n-1)); (m,n>0时)
Input
输入m和n。
Output
函数值
Sample Input
Copy
2 3
Sample Output
Copy
9
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