//Def.h
#include<string.h>
#include<ctype.h>
#include<malloc.h>
#include<iostream.h>
#include<math.h>
#include<stdlib.h>
#include<limits.h>

#define TRUE 1
#define FALSE 0
#define OK 1
#define ERROR 0
#define INFEASIBLE -1

typedef int Status;
 
typedef struct
{
  unsigned int weight;
  unsigned int parent,lchild,rchild;
}HTNode,*HuffmanTree; 
typedef char **HuffmanCode;