#include
int ack(int m,int n)
{if(m==0)return n+1;
if(m>0&&n==0)return ack(m-1,1);
return ack(m-1,ack(m,n-1));
}
int main()
{ int m,n;
scanf("%d%d",&m,&n);
printf("A(%d,%d)=%d\n",m,n,ack(m,n));
return 0;
}
int A(int m,int n);
void main()
{
int m,n;
printf("输入两个整数:\n");
scanf("%d%d",&m,&n);
printf("A(%d,%d)=%d\n",m,n,A(m,n));
}
int A(int m,int n)
{
if(m==0)return n+1;
if(m>0&&n==0) return A(m-1,1);
if(m>0&&n>0)return A(m-1,A(m,n-1));
}
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