Cod sursa(job #513878)

Utilizator Adrian1997Radulescu Adrian Adrian1997 Data 17 decembrie 2010 11:06:00
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.9 kb
#include <stdio.h>
FILE *f,*g;
int n,m,v[10001];

int search(int t,int a)
{int u,p,mij,poz=-1;
 p=1; u=n;
if(t==0)
{while(p<=u)
 {mij=(p+u)/2;
  if(v[mij]==a)
  {poz=mij;
   p=mij+1;
  }
  else if(v[mij]>a)
    u=mij-1;
  else if(v[mij]<a)
	 p=mij+1; 
 }
}
else if(t==1)
{while(p<=u)
 {mij=(p+u)/2;
  if(v[mij]<=a)
  {poz=mij;
   p=mij+1;
  }
  else if(v[mij]>a)
	 u=mij-1;
 }
}
else if(t==2)
{while(p<=u)
 {mij=(p+u)/2;
  if(v[mij]>=a)
  {poz=mij;
   u=mij-1;
  }
  else if(v[mij]<a)
	 p=mij+1; 
 }

}
return poz;
}

int main()
{int i,j;
  f=fopen("cautbin.in","r");
  g=fopen("cautbin.out","w");
  
  fscanf(f,"%d",&n);
  for(i=1;i<=n;i++)
     fscanf(f,"%d",&v[i]);
  
  fscanf(f,"%d",&m);
  int q;
  short t; 
  int r;
  for(i=1;i<=m;i++)
  {fscanf(f,"%d %d",&t,&q);
   r=search(t,q); 
   fprintf(g,"%d\n",r);
  }
  fclose(f);
  fclose(g);
return 0;
}