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Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 3322    Accepted Submission(s): 
1235
#include<stdio.h>
#include<string.h>
#define MAX 2100
int a[MAX][MAX];
int main()
{
	int n,m,j,i,s,sum,t;
	for(i=1;i<MAX;i++)
	{
		a[1][i]=0;
		a[i][1]=i%1007;
	}
	for(i=2;i<MAX;i++)
	{
		for(j=2;j<MAX;j++)
		{
			a[i][j]=(a[i-1][j-1]%1007+a[i-1][j]%1007)%1007;
		}
	}
	scanf("%d",&t);
	while(t--)
	{
		scanf("%d%d",&m,&n);
	    printf("%d\n",a[n][m]);
	}
	return 0;
}
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原文地址:http://www.cnblogs.com/tonghao/p/4551770.html