OJ Board

You are right. Reading the problem statement carefully is the cure for insanity. Thank you for your help.

Here is my code. It is basically simple stack manipulation.

[c]#include <stdio.h>
#ifndef ONLINE_JUDGE
#include <fcntl.h>
#endif

#define FALSE 0
#define TRUE 1
#define NIL 26

typedef struct b_type
{
int block_number;
int stack_number;
struct b_type* block_below;
} block_type;

typedef struct ...

* Edit - the problem was I tried to handle cases where a and b are on the same stack even though the problem statement says they are illegal. Thanks to those who helped. *

I cannot figure out why I am getting wrong answer. Here is a list of things I've checked.

1) Number of blocks greater than 0 ...