Something

#include <iostream.h>float luku1, luku2;float summa;float laske(float summa){            return luku1 + luku2;}main(){            cout << "Anna ensimmainen luku \n";            cin >> luku1;            cout << "Anna toinen luku \n";            cin >> luku2;            cout << "Lukujesi summa on " << laske(summa);      return(0);}