結果

問題 No.4 おもりと天秤
ユーザー mnznmnzn
提出日時 2019-12-24 16:38:51
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 29 ms / 5,000 ms
コード長 4,598 bytes
コンパイル時間 1,060 ms
コンパイル使用メモリ 117,296 KB
実行使用メモリ 27,100 KB
最終ジャッジ日時 2024-09-22 04:45:29
合計ジャッジ時間 2,282 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 26 ms
24,696 KB
testcase_01 AC 26 ms
26,720 KB
testcase_02 AC 26 ms
25,088 KB
testcase_03 AC 25 ms
22,764 KB
testcase_04 AC 26 ms
26,968 KB
testcase_05 AC 27 ms
22,960 KB
testcase_06 AC 26 ms
25,132 KB
testcase_07 AC 27 ms
24,576 KB
testcase_08 AC 26 ms
24,756 KB
testcase_09 AC 29 ms
27,100 KB
testcase_10 AC 27 ms
24,960 KB
testcase_11 AC 27 ms
26,584 KB
testcase_12 AC 26 ms
24,752 KB
testcase_13 AC 26 ms
25,088 KB
testcase_14 AC 26 ms
24,880 KB
testcase_15 AC 27 ms
26,744 KB
testcase_16 AC 26 ms
26,968 KB
testcase_17 AC 26 ms
24,832 KB
testcase_18 AC 27 ms
24,664 KB
testcase_19 AC 27 ms
27,000 KB
testcase_20 AC 28 ms
26,724 KB
testcase_21 AC 27 ms
25,092 KB
testcase_22 AC 27 ms
24,884 KB
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 # 

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        var N = sc.ReadInt();
        var W = sc.ReadIntArray(N);
        var sum = W.Sum();
        if (sum % 2 > 0)
        {
            Console.WriteLine("impossible");
            return;
        }
        var dp = new bool[sum / 2 + 100];
        dp[0] = true;
        for (int i = 0; i < N; i++)
        {
            var nextDP = new bool[dp.Length];
            for (int j = 0; j < sum / 2; j++)
            {
                if (dp[j])
                {
                    nextDP[j] = true;
                    nextDP[j + W[i]] = true;
                }
            }
            dp = nextDP;
        }
        if (dp[sum / 2])
        {
            Console.WriteLine("possible");
        }
        else
        {
            Console.WriteLine("impossible");
        }
    }
    static Scanner sc = new Scanner();
}

class Scanner
{
    string[] S = new string[0];
    int Index = 0;
    char[] Separators = new char[] { ' ' };

    public string Next()
    {
        if (this.Index < this.S.Length) return this.S[this.Index++];
        var line = "";
        while (line == "") line = Console.ReadLine();
        this.S = line.Split(this.Separators, StringSplitOptions.RemoveEmptyEntries);
        if (this.S.Length == 0) return this.Next();
        this.Index = 0;
        return this.S[this.Index++];
    }
    public string ReadStr()
    {
        return this.Next();
    }
    public char ReadChar()
    {
        return this.Next()[0];
    }
    public int ReadInt()
    {
        return int.Parse(this.Next());
    }
    public uint ReadUInt()
    {
        return uint.Parse(this.Next());
    }
    public long ReadLong()
    {
        return long.Parse(this.Next());
    }
    public double ReadDouble()
    {
        return double.Parse(this.Next());
    }
    public Tuple<int, int> ReadTup(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add);
    }
    public Tuple<long, long> ReadTupLong(int add = 0)
    {
        return Tuple.Create(this.ReadLong() + add, this.ReadLong() + add);
    }
    public Tuple<int, int, int> ReadTup3(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add);
    }
    public Tuple<int, int, int, int> ReadTup4(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add);
    }
    public int[] ReadIntArray(int n)
    {
        var array = new int[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadInt();
        }
        return array;
    }
    public long[] ReadLongArray(int n)
    {
        var array = new long[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadLong();
        }
        return array;
    }
    public double[] ReadDoubleArray(int n)
    {
        var array = new double[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadDouble();
        }
        return array;
    }
    public char[] ReadCharArray(int n)
    {
        var array = new char[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadChar();
        }
        return array;
    }
    public string[] ReadStrArray(int n)
    {
        var array = new string[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadStr();
        }
        return array;
    }
    public Tuple<long, long>[] ReadTupLongArray(int n, int add = 0)
    {
        var array = new Tuple<long, long>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTupLong(add);
        }
        return array;
    }
    public Tuple<int, int>[] ReadTupArray(int n, int add = 0)
    {
        var array = new Tuple<int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup(add);
        }
        return array;
    }
    public Tuple<int, int, int>[] ReadTup3Array(int n, int add = 0)
    {
        var array = new Tuple<int, int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup3(add);
        }
        return array;
    }
    public Tuple<int, int, int, int>[] ReadTup4Array(int n, int add = 0)
    {
        var array = new Tuple<int, int, int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup4(add);
        }
        return array;
    }
}
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