C Program: Replacing Element by 1 or 0 Based on Average of Matrix Elements

Question: Write a program in C to read square matrix of order n, find average of elements and then replace each element by 1 if it is greater than average otherwise replace by 0.

#include<stdio.h>

int main()
{
 float a[10][10],avg, sum=0.0;
 int i,j,n;

 printf("Enter n:\n");
 scanf("%d",&n);
 
 printf("Enter matrix:\n");
 for(i=0;i< n;i++)
 {
  for(j=0;j< n;j++)
  {
   printf("a[%d][%d]=",i,j);
   scanf("%f",&a[i][j]);
   sum = sum + a[i][j];
  }
 }
 
 avg = sum/(n*n);
 
 for(i=0;i< n;i++)
 {
  for(j=0;j< n;j++)
  {
   if(a[i][j] >avg)
   {
    a[i][j] = 1;
   }
   else
   {
    a[i][j] = 0;
   }
  }
 }
 printf("Resultant matrix is:\n");
 for(i=0;i< n;i++)
 {
  for(j=0;j< n;j++)
  {
   printf("%0.1f\t", a[i][j]);
  }
  printf("\n");
 }
 
}