結果

問題 No.1199 お菓子配り-2
ユーザー Lily89164763
提出日時 2020-08-28 21:46:01
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 440 ms / 1,000 ms
コード長 2,623 bytes
コンパイル時間 3,012 ms
コンパイル使用メモリ 113,544 KB
実行使用メモリ 57,444 KB
最終ジャッジ日時 2024-11-14 03:15:45
合計ジャッジ時間 17,956 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
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 * 3
other AC * 45
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.Linq;
using CompLib.Util;
public class Program
{
    public void Solve()
    {
        var sc = new Scanner();
        int n = sc.NextInt();
        int m = sc.NextInt();
        long[][] a = new long[n][];
        for (int i = 0; i < n; i++)
        {
            a[i] = sc.LongArray();
        }
        long[] s = new long[n];
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < m; j++)
            {
                s[i] += a[i][j];
            }
        }
        long[] dp = new long[2];
        dp[0] = 0;
        dp[1] = s[0];
        for (int i = 1; i < n; i++)
        {
            var next = new long[2];
            next[1] = Math.Max(dp[1], dp[0] + s[i]);
            next[0] = Math.Max(dp[0], dp[1] - s[i]);
            dp = next;
        }
        Console.WriteLine(dp.Max());
    }
    public static void Main(string[] args) => new Program().Solve();
}
namespace CompLib.Util
{
    using System;
    using System.Linq;
    class Scanner
    {
        private string[] _line;
        private int _index;
        private const char Separator = ' ';
        public Scanner()
        {
            _line = new string[0];
            _index = 0;
        }
        public string Next()
        {
            if (_index >= _line.Length)
            {
                string s;
                do
                {
                    s = Console.ReadLine();
                } while (s.Length == 0);
                _line = s.Split(Separator);
                _index = 0;
            }
            return _line[_index++];
        }
        public string ReadLine()
        {
            _index = _line.Length;
            return Console.ReadLine();
        }
        public int NextInt() => int.Parse(Next());
        public long NextLong() => long.Parse(Next());
        public double NextDouble() => double.Parse(Next());
        public decimal NextDecimal() => decimal.Parse(Next());
        public char NextChar() => Next()[0];
        public char[] NextCharArray() => Next().ToCharArray();
        public string[] Array()
        {
            string s = Console.ReadLine();
            _line = s.Length == 0 ? new string[0] : s.Split(Separator);
            _index = _line.Length;
            return _line;
        }
        public int[] IntArray() => Array().Select(int.Parse).ToArray();
        public long[] LongArray() => Array().Select(long.Parse).ToArray();
        public double[] DoubleArray() => Array().Select(double.Parse).ToArray();
        public decimal[] DecimalArray() => Array().Select(decimal.Parse).ToArray();
    }
}
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