Reverse a 2D string using function - ariful islam shanto

/*  BISMILLAHIR-RAHMANIR-RAHIM
 ____________________________________
|                                    |
|       SHANTO_SUST_SWE-19_029       |
|____________________________________|
*/

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <time.h>

#define debug 0

int r, c;

void reverse_array(int x[r][c], int **y, int r, int c)
{
    int i, j, k;
    for(i = 0; i < r; i++){
        for(j = 0, k = c - 1; j < c; j++, k--){
            y[i][k] = x[i][j];
        }
    }
}

int main()
{
    scanf("%d %d", &r, &c);
    int ara[r][c];
    int i, j;

    /// (Line no 36 & 37) :: used them for using random number

    time_t t;
    srand((unsigned) time(&t));

    for(i = 0; i < r; i++){
        for(j = 0; j < c; j++){
            ara[i][j] = rand() % 10;    ///taking random number instead of scanning, you can custom your input by scanf()
        }
    }

    /// (Line no 47-53) - by these lines i have declared the memory needed for rev_ara

    int **rev_ara;

    rev_ara = (int **) malloc(sizeof(int) * r); //using this line, we are declaring how many rows to be needed

    for(i = 0; i < r; i++){
        rev_ara[i] = (int *) malloc(sizeof(int) * c); // using this loop, we are declaring how many columns will be in every row
    }


    printf("Random Array:\n");

    for(i = 0; i < r; i++){
        for(j = 0; j < c; j++){
            printf("%d ", ara[i][j]);
        }
        printf("\n");
    }

    printf("\n");

    reverse_array(ara, rev_ara, r, c);

    printf("Reversed Random Array:\n");

    for(i = 0; i < r; i++){
        for(j = 0; j < c; j++){
            printf("%d ", rev_ara[i][j]);
        }
        printf("\n");
    }


    return 0;
}

//ALHAMDULILLAH