C Program to Find Sum & Average of Elements in mxn Matrix


Question: Write a program in C to read m x n matrix and find sum and average of elements in the matrix.


#include<stdio.h>


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

 printf("Enter row and column size:\n");
 scanf("%d%d", &m, &n);
 printf("Enter matrix elements:\n");
 for(i=0;i< m;i++)
 {
  for(j=0;j< n;j++)
  {
   printf("a[%d][%d]=",i,j);
   scanf("%f", &a[i][j]);
  }
 }

 for(i=0;i< m;i++)
 {
  for(j=0;j< n;j++)
  {
   sum = sum + a[i][j];
  }
 }

 avg = sum/(m*n);
 printf("Sum = %f\n", sum);
 printf("Average = %f", avg);

}