Submission #1334686


Source Code Expand

using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Collections.Generic;
using System.Diagnostics;
using Enu = System.Linq.Enumerable;

public class Program
{
    public void Solve()
    {
        int N = Reader.Int();
        var A = Reader.IntArray(N);
        int ans = 1;
        int sign = 0;

        for (int i = 1; i < N; i++)
        {
            int s = Math.Sign(A[i] - A[i - 1]);
            if (s != sign && s != 0 && sign != 0) { sign = 0; ans++; }
            else if (sign == 0) sign = s;
        }

        Console.WriteLine(ans);
    }
}


class Entry { static void Main() { new Program().Solve(); } }
class Reader
{
    static TextReader reader = Console.In;
    static readonly char[] separator = { ' ' };
    static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries;
    static string[] A = new string[0];
    static int i;
    static void Init() { A = new string[0]; }
    public static void Set(TextReader r) { reader = r; Init(); }
    public static void Set(string file) { reader = new StreamReader(file); Init(); }
    public static bool HasNext() { return CheckNext(); }
    public static string String() { return Next(); }
    public static int Int() { return int.Parse(Next()); }
    public static long Long() { return long.Parse(Next()); }
    public static double Double() { return double.Parse(Next()); }
    public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); }
    public static int[] IntArray(int N) { return Range(N, Int); }
    public static int[][] IntTable(int H) { return Range(H, IntLine); }
    public static string[] StringArray(int N) { return Range(N, Next); }
    public static string[][] StringTable(int N) { return Range(N, () => Split(Line())); }
    public static string Line() { return reader.ReadLine().Trim(); }
    public static T[] Range<T>(int N, Func<T> f) { var r = new T[N]; for (int i = 0; i < N; r[i++] = f()) ; return r; }
    static string[] Split(string s) { return s.Split(separator, op); }
    static string Next() { CheckNext(); return A[i++]; }
    static bool CheckNext()
    {
        if (i < A.Length) return true;
        string line = reader.ReadLine();
        if (line == null) return false;
        if (line == "") return CheckNext();
        A = Split(line);
        i = 0;
        return true;
    }
}

Submission Info

Submission Time
Task A - Sorted Arrays
User eitaho
Language C# (Mono 4.6.2.0)
Score 300
Code Size 2426 Byte
Status AC
Exec Time 70 ms
Memory 22368 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 17
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt
Case Name Status Exec Time Memory
sample_01.txt AC 23 ms 11220 KB
sample_02.txt AC 21 ms 11092 KB
sample_03.txt AC 21 ms 11220 KB
subtask_1_01.txt AC 51 ms 20576 KB
subtask_1_02.txt AC 44 ms 15328 KB
subtask_1_03.txt AC 35 ms 11616 KB
subtask_1_04.txt AC 70 ms 22368 KB
subtask_1_05.txt AC 69 ms 22368 KB
subtask_1_06.txt AC 70 ms 20320 KB
subtask_1_07.txt AC 69 ms 22368 KB
subtask_1_08.txt AC 68 ms 20320 KB
subtask_1_09.txt AC 69 ms 20320 KB
subtask_1_10.txt AC 22 ms 13140 KB
subtask_1_11.txt AC 22 ms 11220 KB