Thread: please help

Code:

this is my school project i think i have almost completed it .. i have to input data from external file and write it in other out put file... i have to fine the max and min of the given data in the input file... 
the program is getting crashed.. please help

#include <stdio.h>

int main ()
{
  int i,a[10],val,n=0,max,min;
  FILE *fi,*fo;
	if((fi=fopen("indata.txt","r"))==NULL)
      {
		printf("Error in opening the file!!!\n");
       return 1;
      }

	else
{
	while(fscanf(fi,"%f",&val))
	{
		a[n]=val;
		n=n+1;
	}

 max = a[0];
  min = a[0];

  for (i = 0; i < 10; i++)
    {
      if (a[i] > max)
        {
          max = a[i];
        }
      else if (a[i] < min)
        {
          min = a[i];
        }
    }
	if((fo=fopen("result.txt","w"))==NULL)
      {
		printf("Error in opening the file!!!\n");
       return 1;
      }
	else
{
  fprintf (fo,"Maximum element in an array : %d\n", max);
  fprintf (fo,"Minimum element in an array : %d\n", min);
}

fclose(fo);


fclose(fi);

return 0;
}
}