Using Dynamic Memory Allocation, Write a program to find the transpose of given matrix.

Dr. A.P.J. Abdul Kalam Technical University, Lucknow

KCS151 / KCS251 Programming for Problem Solving - Using C Language

Lab Exercises

43. Using Dynamic Memory Allocation, Write a program to find the transpose of given matrix.

/*

 File: Prgrm43.c

 Author: Aditya Saini

 Date: Jan 20, 2021

 Description: Program to transpose given matrix using dynamic memory allocation.

*/

#include <stdio.h>

#include <stdlib.h>

int main (void)

{

     int *mat, *t_mat;

     int row, col;

     int i, j;

     //Input no of rows & columns

     printf ("Input number of rows: ");

     scanf ("%d", &row);

     printf ("Input number of columns: ");

     scanf ("%d", &col);

     //Dynamic memory allocation

     mat = (int *) malloc (row * col * sizeof (int));

     t_mat = (int *) malloc (row * col * sizeof (int));

     //Input matrix

     for (i = 0; i <= row - 1; i++)

          for (j = 0; j <= col - 1; j++)

          {

               printf ("Input %d, %d element: ", i + 1, j + 1);

               scanf ("%d", (mat + i * col + j));

          }

     

     //Calculate transpose matrix

     for (i = 0; i <= row - 1; i++)

          for (j = 0; j <= col - 1; j++)

               *(t_mat + j * row + i) = *(mat + i * col + j);

     //Print Matrix

     printf ("\nMatrix\n");

     for (i = 0; i <= row - 1; i++)

     {

          for (j = 0; j <= col - 1; j++)

               printf ("%d\t", *(mat + i * col + j));

          printf ("\n");

     }

     //Print Transpose Matrix

     printf ("\nTranspose Matrix\n");

     for (i = 0; i <= col - 1; i++)

     {

          for (j = 0; j <= row - 1; j++)

               printf ("%d\t", *(t_mat + i * row + j));

          printf ("\n");

     }

     return 0;

};

Output

Input number of rows: 3

Input number of columns: 2

Input 1, 1 element: 1

Input 1, 2 element: 2

Input 2, 1 element: 3

Input 2, 2 element: 4

Input 3, 1 element: 5

Input 3, 2 element: 6

Matrix

1     2

3     4

5     6

Transpose Matrix

1     3     5     

2     4     6