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C Program to read and print a RxC Matrix, R and C must be input by User

This program will read a two dimensional array (Matrix), number of rows (R) and number of columns (C) will be read through the User.

C Program to read and print a RxC Matrix, R and C must be input by User

#include <stdio.h>
 
#define MAXROW      10
#define MAXCOL      10
 
int main()
{
    int matrix[MAXROW][MAXCOL];
    int i,j,r,c;
     
    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("\nMatrix is :\n");
    for(i=0;i< r;i++)
    {
        for(j=0;j< c;j++)
        {
            printf("%d\t",matrix[i][j]);
        }
        printf("\n");   /*new line after row elements*/
    }
    return 0;   
}

Output

Enter number of Rows :3 
Enter number of Cols :3 

Enter matrix elements : 
Enter element [1,1] : 1 
Enter element [1,2] : 1 
Enter element [1,3] : 1 
Enter element [2,1] : 2 
Enter element [2,2] : 2 
Enter element [2,3] : 2 
Enter element [3,1] : 3 
Enter element [3,2] : 3 
Enter element [3,3] : 3 

Matrix is : 
1	1	1	 
2	2	2	 
3	3	3

Read a Matrix

Use the following code to read a matrix of R x C, where R is the number or rows and C is the number of columns.

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]);
  }
}

Print a Matrix

Use the following code to print a matrix of R x C, where R is the number or rows and C is the number of columns.

printf("\nMatrix is :\n");
for (i = 0; i < r; i++) {
  for (j = 0; j < c; j++) {
    printf("%d\t", matrix[i][j]);
  }
  printf("\n"); /*new line after row elements*/
}