Errore compilazione

[chrisco]

Ciao, ho scritto questo programma che in poche parole mi cripta e decripta una stringa; funzionava fino a quando non ho creato un file header (dove mettere il modello della classe) e un file .cpp (dove mettere i due metodi della classe), infatti ora anche non avendo cambiato nulla del codice non parte e non riesco a capire dove sia l'errore... Vi allego anche la chiave test che ho creato io

main.cpp

#include"criptolib.h"

usingnamespace std;

int main(){
    criptodecripto cript("C:\\Users\\chris\\Desktop\\Chiave.txt");
    int risposta=0;
    do{
        puts("Vuoi criptare o decriptare[1/2]");
        cin>>risposta;
        system("cls");
        if(risposta==1){
            cript.insertmystring();
            cript.cripto();
            cript.putsmystring();
        }
        elseif(risposta==2){
            cript.insertmystring();
            cript.decripto();
            cript.putsmystring();
          
       }
        cout<<"Ti servo ancora?[0/1]"<<endl;
        cin>>risposta;
    }
    while(risposta);
    return0;
    }

criptolib.h

#include<stdio.h>
#include<stdlib.h>
#include<iostream>
#include<fstream>
#ifndef CRIPTOLIB_H
#define CRIPTOLIB_H
usingnamespace std;
#ifdef __cplusplus
extern"C"{
#endif
#ifdef __cplusplus
}
#endif
externconstunsignedint MAX =1000;
char alp[]={'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',' '};
class criptodecripto{
private: 
    char mystring[MAX];
    char key[28];
public:
    criptodecripto(char* director){
        ifstream cinf(director, ios::in);
        if(cinf.good())
            cinf>>key; 
        else{
            cerr<<"Error"<<endl;
            exit(0);
        }
    }
    ~criptodecripto(){
        cout<<"IL MIO LAVORO E' FINITO"<<endl;
        system("pause");
    }
    void cripto();
    void decripto();
    inlinevoid insertmystring(){
        cin.ignore();
        gets(mystring);
    };
    inlinevoid putsmystring(){
        puts(mystring);
    };
};


#endif/* CRIPTOLIB_H */

[chrisco]

criptolib.cpp

#include"criptolib.h"
void criptodecripto::cripto(){
    for(unsignedshortint y=0; mystring[y]; y++){
        for(unsignedshortint i=0; i<27;i++){
            if(mystring[y]==alp[i]){
                 mystring[y]=key[i];
                 break;
                }
            elsecontinue;
        }
    }
}
void criptodecripto::decripto(){
    for(unsignedshortint y=0; mystring[y]; y++){
        for(unsignedshortint i=0; i<27;i++){
            if(mystring[y]==key[i]){
                 mystring[y]=alp[i];
                 break;
                }
            elsecontinue;
        }
    }
 }

Questi sono gli errori:
cd 'W:\Documenti\Programming\CppApplication_1'
C:\mingw\msys\1.0\bin\make.exe -f Makefile CONF=Debug
"/C/mingw/msys/1.0/bin/make.exe" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
make.exe[1]: Entering directory `/w/Documenti/Programming/CppApplication_1'
"/C/mingw/msys/1.0/bin/make.exe" -f nbproject/Makefile-Debug.mk dist/Debug/MinGW-Windows/cppapplication_1.exe
make.exe[2]: Entering directory `/w/Documenti/Programming/CppApplication_1'
mkdir -p dist/Debug/MinGW-Windows
g++ -o dist/Debug/MinGW-Windows/cppapplication_1 build/Debug/MinGW-Windows/criptolib.o build/Debug/MinGW-Windows/main.o
build/Debug/MinGW-Windows/main.o:main.cpp.data+0x0): multiple definition of `alp'
build/Debug/MinGW-Windows/criptolib.o:criptolib.cpp.data+0x0): first defined here
build/Debug/MinGW-Windows/main.o: In function `basic_istream':
c:/mingw/lib/gcc/mingw32/4.9.3/include/c++/istream:607: multiple definition of `MAX'
build/Debug/MinGW-Windows/criptolib.o:c:/mingw/lib/gcc/mingw32/4.9.3/include/c++/iostream:74: first defined here
collect2.exe: error: ld returned 1 exit status
make.exe[2]: *** [dist/Debug/MinGW-Windows/cppapplication_1.exe] Error 1
make.exe[2]: Leaving directory `/w/Documenti/Programming/CppApplication_1'
make.exe[1]: *** [.build-conf] Error 2
make.exe[1]: Leaving directory `/w/Documenti/Programming/CppApplication_1'
make.exe": *** [.build-impl] Error 2

[oregon]

Sposta il vettore alp nel file criptolib.cppm dopo la include

#include "criptolib.h"

char alp[]={'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',' '};

e togli la extern in

const unsigned int MAX = 1000;

[chrisco]

Grazie l'extern lo avevo già tolto era il vettore che non andava...