C program to calculate sum of all elements of Matrix.


#include<stdio.h>
#include<stdlib.h>
int main()
{
  int **a;
  int i,j,m,n,sum=0;
  printf("Enter number of rows:");
  scanf("%d",&m);
  printf("Enter number of columns:");
  scanf("%d",&n);
  a=(int**) malloc(m * sizeof(int*));
  for(i=0;i<m;i++)
   {
    a[i]=(int*) malloc(n * sizeof(int));
   }
  printf("Enter %d by %d matrix:\n",m,n);
  for(i=0;i<m;i++)
   {
    for(j=0;j<n;j++)
    {
     scanf("%d",&a[i][j]);
    }
   }
printf("\nYou Enterd Matrix is:\n");
for(i=0;i<n;i++)
{
for(j=0;j<m;j++)
{
printf("%d  ",a[i][j]);
}
printf("\n");
}
for(i=0;i<n;i++)
{
for(j=0;j<m;j++)
{
sum=sum+a[i][j];
}
}
printf("The sum of all elements of Matrix is:-%d",sum);
return 0;
}


****  INPUT && OUTPUT  ****



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