Write a C program to read a 2D array of N*M class numbers and print square elements of 2D array  using pointers and functions.Sample Input2 3(Read row and column size)1 2 32 1 2Sample Output1 4 94 1 4

Sure, here is a simple C program that reads a 2D array of N*M class numbers and prints the square of each element using pointers and functions.

#include <stdio.h>
#include <stdlib.h>

void read_matrix(int *arr, int m, int n) {
    for(int i=0; i<m; i++) {
        for(int j=0; j<n; j++) {
            printf("Enter element at [%d][%d]: ", i, j);
            scanf("%d", (arr + i*n + j));
        }
    }
}

void print_squares(int *arr, int m, int n) {
    for(int i=0; i<m; i++) {
        for(int j=0; j<n; j++) {
            printf("%d ", (*(arr + i*n + j)) * (*(arr + i*n + j)));
        }
        printf("\n");
    }
}

int main() {
    int m, n;
    printf("Enter number of rows: ");
    scanf("%d", &m);
    printf("Enter number of columns: ");
    scanf("%d", &n);

    int *arr = (int *)malloc(m * n * sizeof(int));

    read_matrix(arr, m, n);
    print_squares(arr, m, n);

    free(arr);

    return 0;
}

This program first reads the number of rows and columns from the user. It then dynamically allocates memory for a 2D array using the malloc function. The read_matrix function is used to read the elements of the array from the user. The print_squares function is used to print the square of each element in the array. Finally, the allocated memory is freed using the free function.