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Input numbers in 2d array and find the sum of each row in C

Two Dimensional Array - Question 5

In this question, we will see how to input numbers in a 3X3 integer matrix (2d array) and find the sum of each row separately in C programming. To know more about two dimensional array click on the two dimensional array lesson.

Q5) Write a program in C to input numbers in a 3X3 integer matrix (2d array) and find the sum of each row separately.

Program

#include <stdio.h>
#include <conio.h>

int main()
{
    int a[3][3], r,c,rs;

    printf("Enter 9 numbers\n");
    for(r=0; r<3; r++)
    {
        for(c=0; c<3; c++)
        {
            scanf("%d",&a[r][c]);
        }
    }

    for(r=0; r<3; r++)
    {
        rs=0;
        for(c=0; c<3; c++)
        {
            printf("%d ",a[r][c]);
            rs=rs+a[r][c];
        }
        printf("  Row Sum = %d\n",rs);
    }
    return 0;
}

Output

Enter 9 numbers
5
74
3
2
63
21
7
19
24
5 74 3   Row Sum = 82
2 63 21   Row Sum = 86
7 19 24   Row Sum = 50
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