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Discussion of Problem 1029. Ministry

Why wa #2
Posted by bobchennan 23 Mar 2009 10:41
This is my program :
#include <stdio.h>
long a[101][501]={0},f[101][501]={0},h[1000]={0};
short k[101][501]={0};
int main()
{
      long s,i,j,n,m,max=214938364;
      long min(long,long);
      scanf("%ld %ld*",&n,&m);
      for (i=1;i<=n;i++)
        for (j=1;j<=m;j++)
          scanf("%ld*",&a[i][j]);
      for (i=1;i<=m;i++)
        f[1][i]=a[1][i];
      for (i=1;i<=n;i++)
        f[i][0]=2147383646;
      for (i=2;i<=n;i++)
        {
                        for (j=1;j<=m;j++)
                          {
                                          f[i][j]=min(f[i-1][j],f[i][j-1])+a[i][j];
                                          if (f[i][j]==f[i-1][j]+a[i][j]) k[i][j]=0;
                                          else k[i][j]=-1;
                                          }
                        for (j=m-1;j>=1;j--)
                          {
                                          f[i][j]=min(f[i][j],f[i][j+1]+a[i][j]);
                                          if (f[i][j]==f[i][j+1]+a[i][j]) k[i][j]=1;
                          }
                          }
      for (i=1;i<=m;i++)
        if (f[n][i]<max)
          max=f[n][i],s=i;
      i=n;
      h[0]++,h[h[0]]=s;
      while (i!=1)
        {
            if (k[i][s]==1)
              s++,h[0]++,h[h[0]]=s;
            if (k[i][s]==-1)
              s--,h[0]++,h[h[0]]=s;
            if (k[i][s]==0)
              i--,h[0]++,h[h[0]]=s;
              }
      for (i=h[0];i>=1;i--)
        printf("%ld ",h[i]);
      return 0;
}
long min(long s1,long s2)
{
     if (s1<s2) return s1;
     else return s2;
}


Why I wa TEST#2?????
Re: Why wa #2
Posted by Vladislav Ivanishin 30 Jun 2009 02:56
I didn't look at ur code, but I think, I can help u.
Try tests like these:

1 10
100 90 80 70 60 50 40 30 20 10
//ans = 10
1 1
1000
//ans = 1


Edited by author 30.06.2009 02:57