hdu1028

#include<stdio.h>
#include<string.h>
const int MAXN=130;
int dp[MAXN][MAXN];
//dp[i][j]表示 i 表示成最大的数不超过 j 的方法数
int calc(int n,int m)
{

if(dp[n][m]!=-1) return dp[n][m];

if(n<1||m<1) return dp[n][m]=0;
if(n==1||m==1) return dp[n][m]=1;
if(n<m) return dp[n][m]=calc(n,n);
if(n==m) return dp[n][m]=calc(n,m-1)+1;
return dp[n][m]=calc(n,m-1)+calc(n-m,m);

}
int main()
{
int n;
memset(dp,-1,sizeof(dp));

while(scanf("%d",&n)!=EOF)
printf("%d\n",calc(n,n));
return 0;
}

时间: 2024-10-25 05:07:38

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