Submission #73384100

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Source Code Expand

var (n, l, w) = Read().SplitAs<int, long, long>();
var d = Read().SplitList<long>();

Write(d.Count(x => x >= l - w && x <= l + w));

#region
#pragma warning disable CS8321
static string Read() => Console.ReadLine()!;
static int ReadInt() => int.Parse(Console.ReadLine()!);
static long ReadLong() => long.Parse(Console.ReadLine()!);
static void Write<T>(T value) => Console.WriteLine(value);
#pragma warning restore CS8321

static class StringExtension
{
    public static (T1, T2) SplitAs<T1, T2>(this string s)
        where T1 : ISpanParsable<T1>
        where T2 : ISpanParsable<T2>
    {
        var chars = s.AsSpan();
        Span<Range> ranges = stackalloc Range[2];
        var cnt = chars.Split(ranges, ' ');
        T1 val1 = T1.Parse(chars[ranges[0]], null);
        T2 val2 = T2.Parse(chars[ranges[1]], null);
        return (val1, val2);
    }

    public static (T1, T2, T3) SplitAs<T1, T2, T3>(this string s)
        where T1 : ISpanParsable<T1>
        where T2 : ISpanParsable<T2>
        where T3 : ISpanParsable<T3>
    {
        var chars = s.AsSpan();
        Span<Range> ranges = stackalloc Range[3];
        var cnt = chars.Split(ranges, ' ');
        T1 val1 = T1.Parse(chars[ranges[0]], null);
        T2 val2 = T2.Parse(chars[ranges[1]], null);
        T3 val3 = T3.Parse(chars[ranges[2]], null);
        return (val1, val2, val3);
    }

    public static (T1, T2, T3, T4) SplitAs<T1, T2, T3, T4>(this string s)
        where T1 : ISpanParsable<T1>
        where T2 : ISpanParsable<T2>
        where T3 : ISpanParsable<T3>
        where T4 : ISpanParsable<T4>
    {
        var chars = s.AsSpan();
        Span<Range> ranges = stackalloc Range[4];
        var cnt = chars.Split(ranges, ' ');
        T1 val1 = T1.Parse(chars[ranges[0]], null);
        T2 val2 = T2.Parse(chars[ranges[1]], null);
        T3 val3 = T3.Parse(chars[ranges[2]], null);
        T4 val4 = T4.Parse(chars[ranges[3]], null);
        return (val1, val2, val3, val4);
    }

    public static (T1, T2, T3, T4, T5) SplitAs<T1, T2, T3, T4, T5>(this string s)
        where T1 : ISpanParsable<T1>
        where T2 : ISpanParsable<T2>
        where T3 : ISpanParsable<T3>
        where T4 : ISpanParsable<T4>
        where T5 : ISpanParsable<T5>
    {
        var chars = s.AsSpan();
        Span<Range> ranges = stackalloc Range[5];
        var cnt = chars.Split(ranges, ' ');
        T1 val1 = T1.Parse(chars[ranges[0]], null);
        T2 val2 = T2.Parse(chars[ranges[1]], null);
        T3 val3 = T3.Parse(chars[ranges[2]], null);
        T4 val4 = T4.Parse(chars[ranges[3]], null);
        T5 val5 = T5.Parse(chars[ranges[4]], null);
        return (val1, val2, val3, val4, val5);
    }

    public static List<T> SplitList<T>(this string s, int capacity = -1) where T : ISpanParsable<T>
    {
        var result = capacity == -1 ? new List<T>() : new List<T>(capacity);
        var span = s.AsSpan();
        foreach (var range in span.Split(' '))
        {
            result.Add(T.Parse(span[range], null));
        }
        return result;
    }
}
#endregion

Submission Info

Judge Result