MIXUP2 - Đàn bò hỗn loạn

Tác giả: hieult

Ngôn ngữ: C++

#include <stdio.h>
//#include <conio.h>

long long f[70000][17], tong=0;

int TTD(int x) { return x>0 ? x:-x;}

int main()
{
    //freopen("mixup.in","r",stdin);
    int n,M, a[17],b[17],chay=1;
    tong=0;
    scanf("%d %d",&n,&M);
    for(int i = 0;i<n;i++)
            scanf("%d",&a[i]);
    for(int i = 0;i<n;i++)
        f[0][i] = 1;
    b[0] = 1;
    for(int i = 1;i<n;i++)
    {
        b[i] = b[i-1]*2;
        chay = chay + b[i];
    }
    for(int i = 1;i<=chay;i++)
    {
        int t[n],m= i;
        for(int j = 0;j<n;j++)
        {
            t[j] = m%2;
            m = m/2;
        }
        for(int j = 0;j<n;j++)
        {
            f[i][j]=0;
            if(b[j]==i) f[i][j]=1;
            else if(t[j]!=0)
            {
                for(int k = 0;k<n;k++)
                     if(TTD(a[j]-a[k])>M)
                          f[i][j]+=f[i-b[j]][k];
                //if(i==8) printf("%d %d\n",j);
            }
        }
        //for(int j = 0;j<n;j++)
            //printf("%d ",f[i][j]);
        //printf("\n");
    }
    for(int i = 0;i<n;i++)
         tong += f[chay][i];
    printf("%lld",tong);
    //getch();
}

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