Codingame『SKYLINES』

*1

問題

www.codingame.com

コード

using System;
using System.Linq;
using System.IO;
using System.Text;
using System.Collections;
using System.Collections.Generic;

/**
 * Auto-generated code below aims at helping you parse
 * the standard input according to the problem statement.
 **/
class Solution
{
    const int Width = 10002;
    static int[] silhouette = new int[Width];
    static int MinX1 = Width;
    static int MaxX2 = 0;

    static int Answer;

    static void Main(string[] args)
    {
        var n = int.Parse(Console.ReadLine());
        for (var i = 0; i < n; i++)
        {
            string[] inputs = Console.ReadLine().Split(' ');
            var h = int.Parse(inputs[0]);
            var x1 = int.Parse(inputs[1]);
            var x2 = int.Parse(inputs[2]);
            Console.Error.WriteLine($"{h},{x1},{x2}");

            AddBuilding(h, x1*2, x2*2);
        }

        CountLines();
        // Write an answer using Console.WriteLine()
        // To debug: Console.Error.WriteLine("Debug messages...");

        Console.WriteLine($"{Answer}");
    }

    static void AddBuilding(int h, int x1, int x2)
    {
        if(x2 < x1) (x1, x2) = (x2, x1);

        if(x1 < MinX1) MinX1 = x1;
        if(MaxX2 < x2) MaxX2 = x2;

        for(var p = x1; p <= x2; p++)
            if(silhouette[p] < h) silhouette[p] = h;
    }

    static void CountLines()
    {
        Console.Error.WriteLine($"**Data**");
        Console.Error.WriteLine($"MinX1:{MinX1}, MaxX2:{MaxX2}");

        for(var p = MinX1; p <= MaxX2; p++)
        {
            if(silhouette[p] != silhouette[p+1]) Answer+=2;
        }

        Answer++;
    }
}

　だいぶ力技になってる。

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