hdu 1028 Ignatius and the Princess III(用母函数解决整数分拆问题)

代码:

#include<cstdio>
#include<cmath>
using namespace std;

int main()
{
    int n;
    int c1[150],c2[150];
    while(scanf("%d",&n)==1)
    {
        for(int i=0;i<=n;i++)
        {
            c1[i]=1;
            c2[i]=0;
        }
        for(int i=2;i<=n;i++)
        {
            for(int j=0;j<=n;j++)
            {
                for(int k=0;k+j<=n;k+=i)
                {
                    c2[j+k]+=c1[j];
                    //c1[k+j]=c2[k+j];
                }

            }
            for(int j=0;j<=n;j++)
            {
                c1[j]=c2[j];
                c2[j]=0;
            }
        }
        printf("%d\n",c1[n]);
    }
    return 0;
}
时间: 2024-08-28 04:11:32

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