#include <stdio.h>
#include <stdlib.h>
 
int main() {
    int **arr;
    int rows, cols;
 
    printf("Enter number of rows: ");
    scanf("%d", &rows);
    printf("Enter number of columns: ");
    scanf("%d", &cols);
 
    // Allocate memory for row pointers
    arr = (int **)malloc(rows * sizeof(int *));
    if (arr == NULL) {
        printf("Memory allocation for rows failed!\n");
        return 1;
    }
 
    // Allocate memory for each row
    for (int i = 0; i < rows; i++) {
        arr[i] = (int *)malloc(cols * sizeof(int));
        if (arr[i] == NULL) {
            printf("Memory allocation for columns failed!\n");
            return 1;
        }
    }
 
    // Input elements
    printf("\nEnter elements of %d x %d matrix:\n", rows, cols);
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            printf("Element [%d][%d]: ", i, j);
            scanf("%d", &arr[i][j]);
        }
    }
 
    // Display matrix
    printf("\nMatrix:\n");
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            printf("%d\t", arr[i][j]);
        }
        printf("\n");
    }
 
    // Free allocated memory
    for (int i = 0; i < rows; i++) {
        free(arr[i]);  // Free each row
    }
    free(arr);  // Free row pointer array
 
    printf("\nMemory freed successfully.\n");
 
    return 0;
}