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C two-dimensional arrays programs
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.
#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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