母函数模板

#include<iostream>
#include<cstdio>
#include<cstring>
#define N 125
using namespace std;
int c1[N],c2[N];
int main()
{
    int i,j,k,n;
    for(i=0;i<=120;i++)
    {
        c1[i]=1;
        c2[i]=0;
    }
    for(i=2;i<=120;i++)
    {
        for(j=0;j<=120;j++)
        for(k=0;k+j<=120;k+=i)
        {
            c2[j+k]+=c1[j];
        }
        for(j=0;j<=120;j++)
        {
            c1[j]=c2[j];
            c2[j]=0;
        }
    }
    while(~scanf("%d",&n))
    {
        printf("%d\n",c1[n]);
    }
    return 0;
}

讲解链接：http://www.cnblogs.com/CyWn/archive/2011/08/17/2143671.html