程序未完成返回值3221225477没有编译器错误

你好，我是C ++编程的新手，我已经写了这段代码

#include <iostream>
#include <string>
using namespace std;
class Weapon
{
    string weaponName;
public:
    Weapon(string n)
    {
        weaponName=n;
        cout<<"Weapon created"<<endl;
    };
    ~Weapon()
    {
        cout<<"Weapon destroyed"<<endl;
    };
    //getter
    string getWeaponName()
    {
        return weaponName;
    };
    //setter
    string setWeaponName(string name2)
    {
        weaponName=name2;
    };

};
class Samurai 
{   
    string samuraiWeapon;
    string name;
    int age;
    int numberOfWins;
    int numberOfInjuries;
    int numberOfDuels;
 public:    
    Samurai(string t,int w,int i,int d,int a)
    {
        name=t;
        numberOfWins=w;
        numberOfInjuries=i;
        numberOfDuels=d;
        age=a;
        samuraiWeapon="no weapon";
        cout <<"Samurai ready for duel."<<endl;

    };
    ~Samurai()
    {
        cout<<"Samurai " << name <<" deleted "<<endl;
    };
    void  printSamuraiDescription()
    {
        cout<<"Samurai name: "<< name <<" Duels: "<<numberOfDuels<<" Wins: "<<numberOfWins<<"  Injuries: "<<numberOfInjuries<<endl;
    };
    void pickWeapon(Weapon &a)
    {
        if (age<18)
        {
            setSamuraiWeapon("Wooden Sword");
            cout<<samuraiWeapon<<endl;
        }
        else
        {
        setSamuraiWeapon(a.getWeaponName());
            cout<<samuraiWeapon<<endl;  
        }
    }
    //getters
    string getName()
    {
        return name;
    };
    string getSamuraiWeapon()
    {
        return samuraiWeapon;
    };
    int getnumberOfWins()
    {
        return numberOfWins;
    };
    int getnumberOfInjuries()
    {
        return numberOfInjuries;
    };
    int getnumberOfDuels()
    {
        return numberOfDuels;
    };
    int getAge()
    {
        return age;
    };
    //setters
    string setName(string a)
    {
         name=a;
    };
    string setSamuraiWeapon(string e)
    {
        samuraiWeapon=e;
    };
    int setnumberOfWins(int b)
    {
         numberOfWins=b;
    };
    int setnumberOfInjuries(int c)
    {
         numberOfInjuries=c;
    };
    int setnumberOfDuels(int d)
    {
         numberOfDuels=d;
    };
    int setAge(int f)
    {
        age=f;
    };
    //friend fuction
    friend void duel(Samurai &a, Samurai &b, bool winner);
    friend string duelForYoungSamurais(Samurai &a, Samurai &b);

};
string duelForYoungSamurais(Samurai &a, Samurai &b)
{
    if (a.age>18 || b.age>18)
    {
        cout<<"Invalid duel"<<endl;
    }
    if (a.samuraiWeapon!="Wooden Sword" || b.samuraiWeapon!="Wooden Sword")
    {
        cout<<"Duel postponed"<<endl;   
    }
    else
    {
        cout<<a.getName()<<" duels "<<b.getName()<<endl;
    }

}
void duel(Samurai &a, Samurai &b, bool winner)
{
    a.setnumberOfDuels(a.numberOfWins+1);
    b.setnumberOfDuels(b.numberOfWins+1);
    if (winner==true)
    {
        cout<<"Samurai a is winner "<<endl;
        a.setnumberOfWins(a.numberOfWins+1);
        b.setnumberOfInjuries(b.numberOfInjuries+1);
        if(a.numberOfWins>=10) cout<<"Samurai a is duelist"<<endl;
    }
    else
    {
        cout<<"Samurai b is winner "<<endl;
        b.setnumberOfWins(b.numberOfWins+1);
        a.setnumberOfInjuries(a.numberOfInjuries+1);
        if(b.numberOfWins>=10) cout<<"Samurai b is duelist"<<endl;  
    }

}
int main()
{
    Samurai a("Giorgos",9,0,0,18);
    Samurai b("Giannis",1,2,3,13);
    Weapon a1("Rock");
    a.pickWeapon(a1);
    b.pickWeapon(a1);
    duelForYoungSamurais(a,b);
    duel(a,b,true);
    a.printSamuraiDescription();
    b.printSamuraiDescription();

}

程序编译没有错误，但是当它启动并运行时，它会停止并在几秒钟内结束而不做我想做的事并返回3221225477如果我在注释中输入与 Weapon 类和 pickWeapon 和决斗有关的部分，我的代码运行得很好