/* Matrix Column Sum - Program to find sum of column elements of all the columns of a given matrix */

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

void main()
{
    int  x[10][10], nr, nc, r, c, sum ;
    clrscr() ;
    printf("Enter the number of rows and columns: ") ;
    scanf("%d %d", &nr, &nc) ;
    printf("Enter elements of the matrix row-wise: \n") ;
    for(r=0 ; r<nr ; r++)
        for(c=0 ; c<nc ; c++)
            scanf("%d", &x[r][c]) ;
    for(c=0 ; c<nc ; c++)
        {
            sum=0;
            for(r=0 ; r<nr ; r++)
                sum=sum+x[r][c];
            printf("Sum of elements of column no %d is %d \n", c, sum) ;
        }
    getch();
}

/*
Output:

Enter the number of rows and columns: 3  3
Enter elements of the matrix:
1  5  8
2  3  4
6  7  9
Sum of elements of column no 0 is 9
Sum of elements of column no 1 is 15
Sum of elements of column no 2 is 21
*/