Submission #6027193

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Source Code Expand

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using static System.Console;
using static System.Math;

class Program
{
    static void Main(string[] args)
    {
        int N = ReadLineParseInt();
        int[] StartTime = new int[N];
        int[] EndTime = new int[N];
        for(int i = 0; i < N; i++)
        {
            int[] input = ReadLine().Split('-').Select(int.Parse).ToArray();
            StartTime[i] = input[0] / 100 * 60 + input[0] % 100;
            StartTime[i] = StartTime[i] / 5 * 5;
            EndTime[i] = input[1] / 100 * 60 + input[1] % 100;
            EndTime[i] = (EndTime[i] % 5 == 0 ? 0 : 5) + EndTime[i] / 5 * 5;
        }
        int[] time = new int[24 * 60 + 1];
        for (int i = 0; i < N; i++)
        {
            time[StartTime[i]]++;
            time[EndTime[i]]--;
        }
        for(int i = 1; i < time.Length; i++)
            time[i] += time[i - 1];

        if (time[0] > 0)
            Write("0000-");
        for(int i = 1; i < time.Length; i++)
        {
            if (time[i - 1] == 0 && time[i] != 0)
                Write($"{i / 60:00}{i % 60:00}-");
            else if (time[i - 1] != 0 && time[i] == 0)
                WriteLine($"{i / 60:00}{i % 60:00}");
        }
    }
    static int ReadLineParseInt() => int.Parse(ReadLine());
}

Submission Info

Judge Result