class Program { static void Main(string[] args) { string[] a = { "A", "B", "C", "D" }; for (int i = 0; i < a.Length; i++) { for (int j = i; j < a.Length; j++) { Console.Write(a[i] + a[j] + " "); } Console.WriteLine(); } Console.ReadLine(); } }
class Program { static void Main(string[] args) { string[] a = { "A", "B", "C", "D" }; for (int i = 0; i < a.Length; i++) { for (int j = i; j < a.Length; j++) { Console.Write(a[i] + a[j] + " "); } Console.WriteLine(); } Console.ReadLine(); } }