RATA-RATA

Algoritma mencari rata-rata {diberikan n data kemudian dicari rata-ratanya}

Deklarasi i, n, jumlah, x : integer rata : real

Deskripsi read(n) jumlah = 0 for i = 1 to n do read(x) jumlah = jumlah + x endfor rata = jumlah/n write(rata)

Listing

#include <iostream>

#include <conio.h>

#include <cstdlib>

using namespace std;

class Rata{

friend istream& operator>>(istream&, Rata&);

friend ostream& operator<<(ostream&, Rata&);

public :

float hitung_rata();

private :

int n;

int data;

};

istream& operator>>(istream& in, Rata& A){

cout<<"BANYAK DATA           : ";

in>>A.n;

return in;

}

float Rata::hitung_rata(){

int jumlah = 0;

float rata;

for(int i = 1; i<=n; i++){

cout<<"\ndata ke- "<<i<<" : ";

cin>>data;

jumlah = jumlah + data;

}

rata = (float)jumlah/n;

return rata;

}

ostream& operator<<(ostream&, Rata&A){

cout << "\nRATA-RATA  : " << A.hitung_rata();

return cout;

}

int main(){

Rata x;

cin>>x;

cout<<x;

getch();

}