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怎么才不超时!!#include<stdio.h>
int c(int n,int k)
{
if(k==0||k==n)
return 1;
else return c(n-1,k-1)+c(n-1,k);
}
void main()
{
int k,n;
while(scanf("%d %d",&n,&k)!=EOF)
{
printf("%d\n",c(n,k)%2);
}
}
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