DouKaku?

//http://ja.doukaku.org/149/　投稿用
using System;
using System.Collections.Generic;

class Program {
    static void Main(string[] args) {
        int teamCount = int.Parse(args[0]);
        List<List<int[]>> leageSchedule = Leage(teamCount);

        //出力
        for(int day = 0; day < leageSchedule.Count; day++) {
            for(int game = 0; game < leageSchedule[day].Count; game++) {
                int min = Math.Min(leageSchedule[day][game][0], leageSchedule[day][game][1]);
                int max = Math.Max(leageSchedule[day][game][0], leageSchedule[day][game][1]);
                Console.Write("{0}-{1} ", min, max);
            }
            Console.WriteLine();
        }
        Console.ReadLine();
    }

    static List<List<int[]>> Leage(int teamCount) {
        //チームリスト生成
        List<int> teamList = new List<int>();
        for(int teamNumber = 1; teamNumber <= teamCount; teamNumber++) {
            teamList.Add(teamNumber);
        }

        //各組み合わせを生成
        List<List<int[]>> leageSchedule = new List<List<int[]>>();
        for(int day = 0; day < teamCount - 1; day++) {
            List<int[]> daySchedule = new List<int[]>();
            daySchedule.Add(new int[] { teamList[0], teamList[1] });
            for(int game = 1; game <= teamCount / 2 - 1; game++) {
                daySchedule.Add(new int[] { teamList[1 + game], teamList[teamList.Count - game] });
            }
            leageSchedule.Add(daySchedule);
            teamList.Add(teamList[1]);
            teamList.RemoveAt(1);
        }
        return leageSchedule;
    }
}