C program palindrome game - c

Question

I'm new in c programming and i'm trying to make a palindrome game. I've given the code below but there is some mistake I'm making and doesn't run can you please give me a hand. Thank you.
The point of the game is to give number to an array, then change with the keys a,d,x,w and try to make it palindrome.
If there is any error can u please give me some advice ?
This is pal.c
#include <stdio.h>
#include "visible.h"
//--------------------------------------------------
// is_pal
//--------------------------------------------------
void print_status(int a[], int* p, int num_mov);
int is_pal(int a[])
{
int b[6];
int i, j;
j = 0;
for (i = 5; i >= 0; i--)
{
b[j] = a[i];
j++;
}
for (i = 0; i <= 5; i++)
{
if (a[i] != b[i]) {
return 0;
}
}
return 1;
}
//--------------------------------------------------
// process_movement
//--------------------------------------------------
void process_movement(int a[], int* p, int num_mov, char c)
{
char d;
d=c;
if(d == 'd')
{
p = a+1;
num_mov++;
print_status(a,p,num_mov);
}
else if(d == 'a')
{
p = a-1;
num_mov++;
print_status(a,p,num_mov);
}
else if(d == 'x')
{
p = malloc(6*sizeof(int));
a = p-1;
num_mov++;
}
else if(d == 'w')
{
p = malloc(6*sizeof(int));
a = p+1;
num_mov++;
}
}
//--------------------------------------------------
// print_status
//--------------------------------------------------
void print_status(int a[], int* p, int num_mov)
{
printf("Number = ");
int i;
for( i = 0; i < 6; i++)
{
printf("%d ", a[i]);
}
printf("\n Number moves = ");
printf("%d", num_mov);
//printf("\n ","%s%", "Pointer is at position ");
printf("%d", *p);
printf("\n");
}
void user_game_palindrome(int pal_num)
{
int a[5];
int i,num_mov;
num_mov = 0;
i = 5;
while (pal_num != 0) {
a[i] = pal_num % 10;
pal_num = pal_num / 10;
i--;
}
int *p = a;
while (is_pal(a) == 1)
{
char c;
print_status(a,p,num_mov);
c = ask_for_command();
process_movement(a,p,num_mov,c);
}
}
This is ex1.c
#include "pal.h"
int main() {
int pal_num = 123342;
user_game_palindrome(pal_num);
return 0;
}
visible.c
#include "visible.h"
#include "conio.h"
//--------------------------------------------------
// gen_num
//--------------------------------------------------
int gen_num(int lb, int ub) {
int num = (rand() % (ub - lb)) + lb;
return num;
}
/* Note: Do not forget to include the following instruction at the beginning of your main() method:
srand(time(NULL));
*/
//--------------------------------------------------
// my_getchar
//--------------------------------------------------
char my_get_char() {
char my_char;
int b = 0;
char dummy_char;
my_char = getchar();
while (b == 0) {
dummy_char = getchar();
if (dummy_char == '\n')
b = 1;
}
return my_char;
}
this is the visible.c ( my teacher told me to include it)

Answer 1

Your conversion from int to array is wrong
for (i = 0; i < 4; i++) {
a[i] = pal_num%10;
pal_num = pal_num % 10;
}
Here, why would this loop end when i is 4. It should go till pal_num is 0. And pal_num = pal_num % 10; should be pal_num = pal_num / 10;
Try something like
i = 0;
while (pal_num != 0) {
a[i] = pal_num % 10;
pal_num = pal_num / 10;
i++;
}
NOTE: Be aware, that this would essentially reverse your int and store in the array.

Answer 2

There's a lot going wrong in your code and you still haven't fixed many things which have been pointed out by others.
as to remove the unnecessary creating of the array b, is_pal can be defined as:
int is_pal(int a[])
{
int i;
for (i = 0; i < 3; ++i)
{
if (a[5-i] != a[i])
return 0;
}
return 1;
}
process_movement doesn't have a case where d == 'w'
user_game_palindrome should have the while loop checking (is_pal(a) == 0)
And you should apply the changes that were suggested by #Haris