pr22.cs

using System;
using System.IO;
using System.Linq;

class Euler
{
    static void Main(string[] args) => Console.WriteLine(
        File.ReadAllText("./p022_names.txt")
            .Replace("\"", "")
            .Split(',')
            .OrderBy(n => n)
            .Select(WeightedScore)
            .Sum()
    );

    static int WeightedScore(string n, int i) => ScoreName(n) * (i+1);

    static int ScoreName(string n) => n.Select(c => (int)c - 64).Sum();
}