Submission #1315885

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Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;

namespace AIZU
{
	class Program
	{
		#region Reserve
		static int cin() { return cin(-1); }
		static int cin(int D)
		{
			string s = Console.ReadLine();
			if (string.IsNullOrEmpty(s))
				return D;
			return int.Parse(s);
		}
		static long[] cins(char spliter)
		{
			string s = Console.ReadLine();
			if (string.IsNullOrEmpty(s))
				return new long[] { };
			string[] ss = s.Split(spliter);
			long[] Res = new long[ss.Length];
			long g;
			for (int i = 0; i < ss.Length; i++) {
				if (long.TryParse(ss[i], out g))
					Res[i] = g;
			}
			return Res;
		}
		static long[] cins() { return cins(' '); }
		static void print(object j) { Console.WriteLine(j.ToString()); }
		static void print(string j) { Console.WriteLine(j); }
		#endregion
		static void Main(string[] args)
		{
			string h = Console.ReadLine();
			string Res;
			if (h.Length != 1) Res = h.Remove(h.Length - 1);
			else if (h != "a") Res = ((char)(h[0] - 1)).ToString();
			else Res = "-1";
			print(Res);
		}
	}
}

Submission Info

Judge Result