#include "iostream.h"
#include "stdlib.h"
#include "stdio.h"
#include "io.h"

class BinOutputer{
 private:
  FILE * outputFile;
  char buffer;
  int bit;

  char getBitPo(int i){
   if(i>7){
    cout<<"Inner bit error!"<<endl;
    exit(1);
   }
   int total=1;
   for(int j=0;j<i;j++)
    total*=2;
   return total;
  }

 public:
  BinOutputer(const char * fileName){
   outputFile=NULL;
   outputFile=fopen(fileName,"w+");
   if(outputFile==NULL){
    cout<<"Cannot open the output file."<<endl;
    exit(1);
   }
   bit=7;
   buffer=0;
  }

  FILE* getOutputFile(){
   return outputFile;
  }

  void outputABit(int i){
   cerr<<i;
   switch(i){
   case 1:
    buffer+=getBitPo(bit);
   case 0:
    bit--;
    if(bit==-1){
     bit=7;
     putc(buffer,outputFile);
     cerr<<"\tBuffer output:"<<(long)buffer<<endl;
     buffer=0;
    }
    break;
   default:
    cout<<"Bit output error!"<<endl;
    exit(1);
   }
  }

  void endOutput(){
   if(bit!=7){
    putc(buffer,outputFile);
    cerr<<"Buffer output:"<<(long)buffer<<endl;
   }
   fclose(outputFile);
  }

};

class BinInputer{
 private:
  FILE * inputFile;
  char buffer;
  int bit;

  char getBitPo(int i){
   if(i>7){
    cout<<"Inner bit error!"<<endl;
    exit(1);
   }
   int total=1;
   for(int j=0;j<i;j++)
    total*=2;
   return total;
  }

 public:
  BinInputer(const char * fileName){
   inputFile=NULL;
   inputFile=fopen(fileName,"r");
   if(inputFile==NULL){
    cout<<"Cannot open the output file."<<endl;
    exit(1);
   }
   bit=-1;
   buffer=0;
  }

  FILE* getInputFile(){
   return inputFile;
  }

  int inputABit(){
   if(bit==-1){
    bit=7;
    if((buffer=getc(inputFile))==EOF){ 
     return -1;
    }
   }
   int temp=getBitPo(bit);
   bit--;
   
   if((unsigned)buffer>=(unsigned)temp){
    buffer=(char)((unsigned)buffer-(unsigned)temp);
    //cerr<<'1';
    return 1;
   }
   else{
    //cerr<<'0';
    return 0;
   }

  }

  void endInput(){
   fclose(inputFile);
  }

};