競技プログラミングの鉄則    次の問題へ    前の問題へ

A28 Blackboard


問題へのリンク


C#のソース

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

class Program
{
    static string InputPattern = "InputX";

    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();

        if (InputPattern == "Input1") {
            WillReturn.Add("4");
            WillReturn.Add("+ 57");
            WillReturn.Add("+ 43");
            WillReturn.Add("* 100");
            WillReturn.Add("- 1");
            //57
            //100
            //0
            //9999
        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }

    static void Main()
    {
        List<string> InputList = GetInputList();

        long CurrVal = 0;
        foreach (string EachStr in InputList.Skip(1)) {
            string[] SplitArr = EachStr.Split(' ');

            long AVal = long.Parse(SplitArr[1]);
            if (SplitArr[0][0] == '+') {
                CurrVal += AVal;
            }
            if (SplitArr[0][0] == '-') {
                CurrVal -= AVal;
            }
            if (SplitArr[0][0] == '*') {
                CurrVal *= AVal;
            }
            CurrVal %= 10000;
            if (CurrVal < 0) CurrVal += 10000;

            Console.WriteLine(CurrVal);
        }
    }
}


解説

細めにmodを取ってます。