Example: C Program to Find Sum of Each Row and Column of a Matrix

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// C Program to Find Sum of Each Row and Column of a Matrix
#include <stdio.h>

int main() {
    int a[10][10], i, j, x, y, sum = 0;

    printf("-----Enter the number of rows & columns of the matrix-----\n");
    scanf("%d %d", &x, &y);

    printf("\n-----Enter the co-efficients of the matrix-----\n");
    for (i = 0; i < x; ++i) {
    	for (j = 0; j < y; ++j) {
    		scanf("%d", &a[i][j]);
    	}
    	printf("\n");
    }

    for (i = 0; i < x; ++i) {
        for (j = 0; j < y; ++j) {
            sum = sum + a[i][j] ;
        }
 
        printf("The Sum of the %d position row is = %d\n", i, sum);
        sum = 0; 
    }
    printf("\n");

    sum = 0;

    for (j = 0; j < y; ++j) {
        for (i = 0; i < x; ++i) {
            sum = sum + a[i][j];
        }
 
        printf("The Sum of the %d position column is = %d\n", j, sum);
        sum = 0;
    }
    return 0;
}