Cod sursa(job #39190)

Utilizator marius135Dumitran Adrian Marius marius135 Data 26 martie 2007 15:04:06
Problema Regiuni Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.65 kb
#include<stdio.h>
#include<stdlib.h>
#define maxn 1001

int a[maxn][3],x,y,i,nr,n,m,j;
char t[maxn][maxn];

int sort(const void *a,const void *b)
{
return strcmp((char *)a,(char *)b);
}


int main()
{
freopen("regiuni.in","r",stdin);
freopen("regiuni.out","w",stdout);

scanf("%d%d",&n,&m);
for(i=1;i<=n;i++)
  scanf("%d%d%d",a[i][0],a[i][1],a[i][2]);
for(i=0;i<m;i++)
  {
  scanf("%d%d",&x,&y);
  for(j=1;j<=n;j++)
    {
    if(a[j][0] + a[j][1]*x+a[j][2]*y >0) t[i][j]=0;
    else t[i][j]=1;
    }   
  }
qsort(t,m,sizeof(t[0]),sort());
for(i=1;i<m;i++)
  if(strcmp(t[i],t[i-1])!=0) nr++;

printf("%d\n",nr);


return 0;
}