Online Judge Assistant

Today, I want to contribute to Codeforces community, because I received much benefit and fun from Codeforces and I appreciate for them.

Online Judge Assistant is designed for Codeforces and the other online judge system. It can create files quickly for the Codeforces contests.The files can create from custom template locally.

Demonstration

Feature

• Auto create source code files(.cpp;.java) from contest or single problem.
• Custom source code(.cpp;.java) template.
• Comment your solution code effectively,like a Pro.
• Auto start vscode or IntelliJ IDEA.

System requirements

• Windows Vista SP2/7 SP1/8.x/10
• Windows Server 2008 R2 SP1 (64-bit)
• Windows Server 2012 and 2012 R2 (64-bit)
• Windows Server 2016+
• RAM: 128 MB, Disk space: 10 MB
• Processor: Minimum Pentium 2 266 MHz processor
• Microsoft .NET Framework 4

How to use

• unpack the release zip file.
• just run OJAssistantUI.exe.
• enjoy!

The input field description

field name	description
problemId	the problemId or contestId from online judge.
Author	your name.
Working Dir	the directory where source code create.

The problemId field description

maybe add more in next release.

problemId	description
codeforces	the problemId or contestId from codeforces. Examples: 1151 or 1151A
UVa	UVa online-judge problemId. Examples:10337
USACO	the problem URL from usaco. Examples: http://www.usaco.org/index.php?page=viewproblem2&cpid=1113
SPOJ	the problem URL from Sphere online judge . Examples: https://www.spoj.com/problems/ONP/
Timus Online Judge(Ural)	the problem URL from Timus Online Judge . Examples: https://acm.timus.ru/problem.aspx?space=1&num=1004
POJ	the problem URL from PKU JudgeOnline . Examples: http://poj.org/problem?id=1004
HDU	the problem URL from HDU Online Judge System . Examples: http://acm.hdu.edu.cn/showproblem.php?pid=1002

How to custom source C++ code template

• Create file template.cpp in installed directory.
• You can edit your template.cpp like this:

/*
-------------------------------------------------------------------
* @Name:           {Name}
* @Author:         {Author}
* @Create Time:    {CreateTime}
* @Url:            {Url}
* @Description:    {Description}
-------------------------------------------------------------------
      _
     /(|
    (  :
   __\  \  _____
 (____)  `|
(____)|   |
 (____).__|
  (___)__.|_____

*/

#include <bits/stdc++.h>
using namespace std;

using ll = long long int;

int main()
{

#ifndef ONLINE_JUDGE
    freopen("{fileNameNoExtension}.in", "r", stdin);
    freopen("{fileNameNoExtension}.out", "w", stdout);
#endif

    return 0;
}

How to custom source java code template

• Create file template.java in installed directory.
• You can edit your template.java like this:

/*
-------------------------------------------------------------------
* @Name:           {Name}
* @Author:         {Author}
* @Create Time:    {CreateTime}
* @Url:            {Url}
* @Description:    {Description}
-------------------------------------------------------------------
      _
     /(|
    (  :
   __\  \  _____
 (____)  `|
(____)|   |
 (____).__|
  (___)__.|_____
*/

import java.io.*;
import java.util.*;

public class {fileNameNoExtension}
{
    public static void main(String[] args) throws IOException
    {
        boolean isLocal= System.getProperty("ONLINE_JUDGE") == null;
        long startTime = 0;
        if (isLocal)
        {
            startTime = System.currentTimeMillis();
            //redirect stdin/stdout to local file
            System.setIn(new FileInputStream(new File("{fileNameNoExtension}.in")));
            System.setOut(new PrintStream(new File("{fileNameNoExtension}.out")));
        }

        FastReader in = new FastReader(System.in);
        PrintStream out = System.out;

        new Solution(in, out).Solve();

        out.close();
        
        if (isLocal)
        {
            System.err.println("program exited after: " + (System.currentTimeMillis() - startTime) + "ms");
        }        
    }

    private static class FastReader
    {
        private BufferedReader reader;
        private StringTokenizer tokenizer;
    
        public FastReader(InputStream input)
        {
            reader = new BufferedReader(new InputStreamReader(input));
            tokenizer = new StringTokenizer("");
        }
    
        public String next()
        {
            while (!tokenizer.hasMoreTokens())
            {
                // TODO add check for eof if necessary
                try
                {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e)
                {
                    e.printStackTrace();
                }
                
            }
            return tokenizer.nextToken();
        }
    
        public int nextInt()
        {
            return Integer.parseInt(next());
        }

        public long nextLong()
        {
            return Long.parseLong(next());
        }
    
        public double nextDouble()
        {
            return Double.parseDouble(next());
        }

        String nextLine()
        { 
            String str = ""; 
            try
            { 
                str = reader.readLine(); 
            } 
            catch (IOException e) 
            { 
                e.printStackTrace(); 
            } 
            return str; 
        }         
    }    

    private static class Solution
    {
        private FastReader In;
        private PrintStream Out;

        public Solution(FastReader in, PrintStream out)
        {
            this.In = in;
            this.Out = out;
        }

        public void Solve()
        {
            Out.println("OK");
        }
    }
}

The program auto fill fields when create file:

field name	description
{Name}	the problem name from online judge.
{Author}	coder name.
{CreateTime}	date time when create the file.
{Url}	the problem url from online judge.
{Description}	the problem Description from online judge.
{fileNameNoExtension}	auto fileName without Extension.

How to use Online Judge Assistant in IntelliJ IDEA

• Create IDEA project with format file-based(.ipr),including Module name.
• Select Working dir into IDEA project location.