using
System;using
System.Collections.Generic;using
System.Text;namespace
ConsoleApplication1{
class Program{
static void Main(string[] args){
int n = Convert.ToInt16(Console.ReadLine()); Console .WriteLine ("{0}",hony(n)); Console .ReadLine ();}
/***********************************************************************************/ static long hony ( int n){
if (n==0) return 0; else return 2*hony (n-1)-1;}
}
}
سمانه طالبی
