hdu 2069 Coin Change (母函數)

// Time 0ms, Memory 404K

#include<stdio.h>int a[255][105],temp[255][105];int val[6]={0,1,5,10,25,50};int num[255]={0};int main(){int i,j,k,t,n;a[0][0]=1;for(i=1;i<=5;i++){for(j=0;j<=250;j++)for(k=0;j+k*val[i]<=250;k++)for(t=0;t+k<=100;t++)temp[j+k*val[i]][t+k]+=a[j][t]; for(j=0;j<=250;j++)for(t=0;t<=100;t++){a[j][t]=temp[j][t];temp[j][t]=0;}}for(i=0;i<=250;i++)for(j=0;j<=100;j++)num[i]+=a[i][j];while(scanf("%d",&n)!=EOF){printf("%d\n",num[n]);}return 0;}