【NO.3】 c program to caculate and display sum of two matrix

source code:

#include "stdafx.h"

/* display sum of two matrix*/

int _tmain(int argc, _TCHAR* argv[])
{
 int a[3][3], b[3][3], c[3][3], i, j;
 i = j = 0;
 printf("input elements into the first matrix a[3][3] ");
 for (i = 0; i < 3; i++)
 {
  for(j = 0; j < 3; j++)
  {
   scanf_s("%d", &a[i][j]);
  }
 }
 printf("input elements into the first matrix b[3][3] ");
 for (i = 0; i < 3; i++)
 {
  for(j = 0; j < 3; j++)
  {
   scanf_s("%d", &b[i][j]);
  }
 }

 for (i = 0; i < 3; i++)
 {
  for(j = 0; j < 3; j++)
  {
   c[i][j] = a[i][j]+b[i][j];
  }
 }
 printf("the sum of the two matrix is below: ");
 for (i = 0; i < 3; i++)

 {  
  for(j=0;j<3;j++)  
  {
   printf("%d ",c[i][j]);   
  }
  printf("
"); 
 }
 getchar();
}

inputs and outputs:

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