関連ワード:  write a program using friend function in c++    write a program using friend class in c++    write a program using friend function and friend class in c++    write a program to add two numbers using friend function in c++    write a program to demonstrate use of friend function in c++    write a program to show the use of friend function in c++    write a program to implement friend function in c++    write a program in c++ to swapping of two numbers using friend function    explain friend function in c++    define friend function in c++  
結果 : write a program using friend function in c++