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C Program to find sum of all elements of each row of a matrix

This C program will read a Matrix (two dimensional arrays) and print the sum of all elements of each row.

C program to find sum of all elements of each row of a matrix

#include <stdio.h>

#define MAXROW 10
#define MAXCOL 10

int main() {
  int matrix[MAXROW][MAXCOL];
  int i, j, r, c;
  int sum, product;

  printf("Enter number of Rows :");
  scanf("%d", &r);
  printf("Enter number of Cols :");
  scanf("%d", &c);

  printf("\nEnter matrix elements :\n");
  for (i = 0; i < r; i++) {
    for (j = 0; j < c; j++) {
      printf("Enter element [%d,%d] : ", i + 1, j + 1);
      scanf("%d", &matrix[i][j]);
    }
  }
  printf("\n");
  /*sum of all rows*/
  for (i = 0; i < r; i++) {
    sum = 0; /*initializing sum*/
    for (j = 0; j < c; j++) {
      printf("%d\t", matrix[i][j]); /*print elements*/
      sum += matrix[i][j];
    }
    printf("\tSUM : %d", sum);
    printf("\n"); /*after each row print new line*/
  }
}

Output

Enter number of Rows :3
Enter number of Cols :3

Enter matrix elements :
Enter element [1,1] : 1
Enter element [1,2] : 2
Enter element [1,3] : 3
Enter element [2,1] : 4
Enter element [2,2] : 5
Enter element [2,3] : 6
Enter element [3,1] : 7
Enter element [3,2] : 8
Enter element [3,3] : 9

1	2	3		SUM : 6
4	5	6		SUM : 15
7	8	9		SUM : 24

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