学步园

#include<stdio.h>
int c1[101][260],c2[101][260];
int main()
{
    int n,i,j,k,a[5]={1,5,10,25,50},p;
	n=250;
	c1[0][0]=1;
     for(i=0;i<=4;i++)
        {
             for(j=0;j<=n;j++)      
                for(k=0;k+j<=n;k=k+a[i])
					for(p=0;p+k/a[i]<=100;p++)
                    c2[p+k/a[i]][j+k]+=c1[p][j];
                for(j=0;j<=100;j++)
					for(k=0;k<=n;k++)
                {
                    c1[j][k]=c2[j][k];c2[j][k]=0;
                }
        }
    while(scanf("%d",&n)!=-1)
    {
		int sum=0;
		for(i=0;i<=100;i++)
			sum+=c1[i][n];
        printf("%d\n",sum);
    }
    return 0;
}