Program menghitung keliling segitiga

#include <cstdlib>

#include <iostream>

using namespace std;

class segitiga {

public :

segitiga ();

void input();

void proses();

private :

int a;

int b;

int c;

int keliling;

};

segitiga::segitiga(){

cout<<"=================================\n";

cout<<"Menghitung Keliling Segitiga\n";

cout<<"=================================\n";

}

void segitiga::input (){

cout<<"Masukkan Panjang Sisi A = ";

cin>>a;

cout<<"Masukkan Panjang Sisi B = ";

cin>>b;

cout<<"Masukkan Panjang Sisi C = ";

cin>>c;

}

void segitiga::proses(){

keliling=a+b+c;;

cout<<"Keliling : "<<keliling;

}

int main(int argc, char *argv[]){

segitiga sgtga;

sgtga.input();

sgtga.proses();

return 0;

}

Raptor :