結果

問題 No.190 Dry Wet Moist
ユーザー EmKjp
提出日時 2015-04-28 20:26:05
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 195 ms / 2,000 ms
コード長 3,601 bytes
コンパイル時間 1,091 ms
コンパイル使用メモリ 109,696 KB
実行使用メモリ 45,568 KB
最終ジャッジ日時 2024-07-05 05:03:12
合計ジャッジ時間 4,560 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 28
権限があれば一括ダウンロードができます
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc)
Copyright (C) Microsoft Corporation. All rights reserved.

ソースコード

diff #
プレゼンテーションモードにする

using System;
using System.IO;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
partial class Solver {
    long CountDry(int[] A) {
        Array.Sort(A);
        Array.Reverse(A);
        int right = A.Length - 1;
        int ans = 0;
        int skipMin = 0;
        for (int i = 0; i < A.Length; i++) {
            if (i >= right) break;
            if (A[i] + A[right] < 0) {
                right--;
                ans++;
            } else {
                if (A[i] < 0) skipMin++;
            }
        }
        return ans + skipMin / 2;
    }
    public void Run() {
        int n = ni();
        var A = NextIntArray(2 * n);
        long dry = CountDry(A);
        long wet = CountDry(A.Select(x => -x).ToArray());
        long moist = 0;
        int offset = 100010;
        var hist = new int[offset * 2];
        foreach (var x in A) {
            hist[x + offset]++;
        }
        moist += hist[offset] / 2;
        for (int i = 1; i < offset; i++) {
            moist += Math.Min(hist[i + offset], hist[-i + offset]);
        }
        cout.WriteLine("{0} {1} {2}", dry, wet, moist);
    }
}
// PREWRITEN CODE BEGINS FROM HERE
partial class Solver : Scanner {
    public static void Main(string[] args) {
        new Solver(@"4
-4 -3 -2 -1 1 2 3 4", Console.Error).Run();
        new Solver(Console.In, Console.Out).Run();
    }
    TextReader cin;
    TextWriter cout;
    public Solver(TextReader reader, TextWriter writer)
        : base(reader) {
        this.cin = reader;
        this.cout = writer;
    }
    public Solver(string input, TextWriter writer)
        : this(new StringReader(input), writer) {
    }
    public int ni() {
        return NextInt();
    }
    public long nl() {
        return NextLong();
    }
    public string ns() {
        return Next();
    }
}
public class Scanner {
    private TextReader Reader;
    private Queue<String> TokenQueue = new Queue<string>();
    private CultureInfo ci = CultureInfo.InvariantCulture;
    public Scanner()
        : this(Console.In) {
    }
    public Scanner(TextReader reader) {
        this.Reader = reader;
    }
    public int NextInt() { return Int32.Parse(Next(), ci); }
    public long NextLong() { return Int64.Parse(Next(), ci); }
    public double NextDouble() { return double.Parse(Next(), ci); }
    public string[] NextArray(int size) {
        var array = new string[size];
        for (int i = 0; i < size; i++) array[i] = Next();
        return array;
    }
    public int[] NextIntArray(int size) {
        var array = new int[size];
        for (int i = 0; i < size; i++) array[i] = NextInt();
        return array;
    }
    public long[] NextLongArray(int size) {
        var array = new long[size];
        for (int i = 0; i < size; i++) array[i] = NextLong();
        return array;
    }
    public String Next() {
        if (TokenQueue.Count == 0) {
            if (!StockTokens()) throw new InvalidOperationException();
        }
        return TokenQueue.Dequeue();
    }
    public bool HasNext() {
        if (TokenQueue.Count > 0)
            return true;
        return StockTokens();
    }
    private bool StockTokens() {
        while (true) {
            var line = Reader.ReadLine();
            if (line == null) return false;
            var tokens = line.Trim().Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
            if (tokens.Length == 0) continue;
            foreach (var token in tokens)
                TokenQueue.Enqueue(token);
            return true;
        }
    }
}
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