Submission #1869485

---

Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

public class Program
{
    public static void Main()
    {
        string s = Console.ReadLine();
        Console.WriteLine(s.Length - (Atcoder.strReverce(s).IndexOf("Z"))-(s.IndexOf("A")));
    }

}




public class Atcoder
{
    static void Swap<T>(ref T a, ref T b)
    {
        var t = a;
        a = b;
        b = t;
    }
    public static int LCM(int a, int b)
    {
        int c = a * b;
        if (a < b) Swap(ref a, ref b);
        int d = a % b;
        while (d != 0)
        {
            a = b;
            b = d;
            d = a % b;
        }
        return c / b;
    }
    public static string strReverce(string s) {
        string s_ = new string(s.Reverse().ToArray());
        return s_;
    }

    public static List<int> IndexOfPlural(string a, string b)
    {
        List<int> list = new List<int>();
        if (a.Length == 0 || b.Length == 0) { list.Add(-1); return list; }
        if (a.IndexOf(b) == -1) { list.Add(-1); return list; }
        int box = 0;
        int revision = 0;
        while (true)
        {
            if (a.Length == 0) break;
            box = a.IndexOf(b);
            if (box == -1) { break; }
            else
            {
                list.Add(box + revision);
                a = a.Remove(box, b.Length);
                revision += b.Length;
            }
        }
        return list;
    }
}

Submission Info

Judge Result