#include <iostream>
#include <string>

//using namespace std;

struct mystat {
        unsigned long int count;
        bool used;
        };
 /********************************************************************************/       
class freqsub 
{
public:
freqsub(void);
int freqsub_encode(void);
int freqsub_decode(void);    
 char * inputFile;
 char * outputFile;
bool codec;      //true means encoding,false means decoding

private:
struct mystat * st;
int find_max(void);    
};
/********************************************************************************/