C Exercises: Read a 2D array of size 3x3 and print the matrix
18. 2D Array (3x3) & Matrix Print
Write a program in C for a 2D array of size 3x3 and print the matrix.
The task is to create a C program that defines and prints a 3x3 matrix. The program prompts the user to input elements for each position in the matrix and then displays the complete matrix as output.
Visual Presentation:
Sample Solution:
C Code:
#include <stdio.h>
void main() {
int arr1[3][3], i, j;
// Prompt user for input
printf("\n\nRead a 2D array of size 3x3 and print the matrix :\n");
printf("------------------------------------------------------\n");
// Input values for the matrix
printf("Input elements in the matrix :\n");
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
printf("element - [%d],[%d] : ", i, j);
scanf("%d", &arr1[i][j]);
}
}
// Display the matrix
printf("\nThe matrix is : \n");
for (i = 0; i < 3; i++) {
printf("\n");
for (j = 0; j < 3; j++)
printf("%d\t", arr1[i][j]);
}
printf("\n\n");
}
Sample Output:
Read a 2D array of size 3x3 and print the matrix :
------------------------------------------------------
Input elements in the matrix :
element - [0],[0] : 1
element - [0],[1] : 2
element - [0],[2] : 3
element - [1],[0] : 4
element - [1],[1] : 5
element - [1],[2] : 6
element - [2],[0] : 7
element - [2],[1] : 8
element - [2],[2] : 9
The matrix is :
1 2 3
4 5 6
7 8 9
Flowchart:
For more Practice: Solve these Related Problems:
- Write a C program to input a 3x3 matrix and then print its transpose.
- Write a C program to input a 3x3 matrix and display the matrix in spiral order.
- Write a C program to input a 3x3 matrix and compute the sum of all its elements.
- Write a C program to input a 3x3 matrix and display only the diagonal elements.
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C Programming Code Editor:
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