Sayıları Sıralayan C++ Programı

#include <iostream>
using namespace std;

void Sirala(float &X1, float &X2)
{
 float Tmp;
 if (X2<X1)
 {
  Tmp = X1;
  X1=X2;
  X2=Tmp;
 }
}

#define Pi 3.141595

//const int P = 3.141595;

void DegerOku(float &S1,float &S2,float &S3,float &S4,float &S5)
{
 cout << "1. sayisi giriniz = "; cin >> S1;
 cout << "2. sayisi giriniz = "; cin >> S2;
 cout << "3. sayisi giriniz = "; cin >> S3;
 cout << "4. sayisi giriniz = "; cin >> S4;
 cout << "5. sayisi giriniz = "; cin >> S5;
}

void DegerYaz(float S1,float S2,float S3,float S4,float S5)
{
 cout << "1. sayisinin degeri = "<< S1 << endl;
 cout << "2. sayisinin degeri = "<< S2 << endl;
 cout << "3. sayisinin degeri = "<< S3 << endl;
 cout << "4. sayisinin degeri = "<< S4 << endl;
 cout << "5. sayisinin degeri = "<< S5 << endl;
}

void main ()
{
 float S1,S2,S3,S4,S5;
 unsigned __int64 a,b;
 DegerOku(S1,S2,S3,S4,S5);
 DegerYaz(S1,S2,S3,S4,S5);

 cout << "Simdi siralama islemi yapilacak \n";
 system("pause");
 //siralama islemi 
 Sirala(S1,S2);
 Sirala(S1,S3);
 Sirala(S1,S4);
 Sirala(S1,S5);

 Sirala(S2,S3);
 Sirala(S2,S4);
 Sirala(S2,S5);

 Sirala(S3,S4);
 Sirala(S3,S5);

 Sirala(S4,S5);

 cout << "Sayilar siralandi. Siralanmis degerler:\a\n";
 DegerYaz(S1,S2,S3,S4,S5);
 system("pause");
}