Submission #1178218

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Source Code Expand

using System;

class AtCoder
{
    static int Solve(string s)
    {
        int aIndex = 20000;
        int zIndex = -1;
        int i = 0;

        foreach (char c in s)
        {
            if (c == 'A')
            {
                aIndex = Math.Min(aIndex, i);
            }
            else if (c == 'Z')
            {
                zIndex = Math.Max(zIndex, i);
            }
            ++i;
        }
        
        return (zIndex - aIndex) + 1;
    }

    static void Main()
    {
        string s = Console.ReadLine();
        int answer = Solve(s);
        Console.WriteLine(answer);
    }
}

Submission Info

Judge Result