Write a C program to add two matrices

Description: Take the elements of two 2 x 2 matrices as input. Print the sum matrix.

Hint:

• Add the elements which are at the same row and column: sum[i][j] = a[i][j] + b[i][j].

---

C program to add two matrices

#include <stdio.h>

int main(void) {
    int a[2][2], b[2][2], sum[2][2];

    printf("Enter 4 elements of the first matrix: ");
    for (int i = 0; i < 2; i++)
        for (int j = 0; j < 2; j++)
            scanf("%d", &a[i][j]);

    printf("Enter 4 elements of the second matrix: ");
    for (int i = 0; i < 2; i++)
        for (int j = 0; j < 2; j++)
            scanf("%d", &b[i][j]);

    printf("Sum of the matrices:\n");
    for (int i = 0; i < 2; i++) {
        for (int j = 0; j < 2; j++) {
            sum[i][j] = a[i][j] + b[i][j];
            printf("%d ", sum[i][j]);
        }
        printf("\n");
    }
    return 0;
}

Output:

How it works

• The nested loops go through each row and each column.
• The result matrix has two rows: 6 8 and 10 12.

Read C Two Dimensional Arrays.

• Previous Exercise
• Next Exercise

---

Tutorials
No Content Found.

Exercises & Assignments
No Content Found.

Interview Questions & Answers
No Content Found.