Get, test, and submit test cases on the command line in the AtCoder contest

Introduction

It is a procedure to acquire, test, and submit a test case on the terminal (Mac) using ʻatcoder-cli, ʻonline-judge-tools.

When I started AtCoder, I used the code test on the contest page without any special environment maintenance, but by improving the environment as described in this article, everything will be completed on Visual Studio Code + iTerm2. The speed of submission has increased.

Advance preparation

Installation of necessary tools

$ pip3 install online-judge-tools
$ npm install -g atcoder-cli
$ pip3 install selenium

Log in to AtCoder with the tool

$ acc login
$ oj login https://atcoder.jp/

Setting

Make sure that all problem directories are created. For example, for AtCoder Begginer Contest, let the acc new abcXXX command create problems a ~ f

$ acc config default-task-choice all

Show the location of the config directory

$ acc config-dir

Set the template. Create a folder with the template name in the config directory, and create the template source code (example: main.py) and the template configuration file (template.json) in it.

#Go to config directory
$ cd /Users/xxxxxxxxxx/Library/Preferences/atcoder-cli-nodejs
$ mkdir py
$ cd py
$ touch main.py template.json

When the problem directory is created, main.py is created, and to submit it to main.py, write as follows.

$ cat template.json 
{
  "task":{
    "program": ["main.py"],
    "submit": "main.py"
  }
}

Edit the default settings when main.py was created. #! / usr / bin / env python3 is required. In my case, I write additional common input patterns by default.

$ cat main.py 
#!/usr/bin/env python3
S = input()
N = int(input()) 
S = input().split()
A, B, C = input().split()
L = list(map(int, input().split()))
H, N = map(int, input().split())

Set the default template to py (files set in the py directory apply)

$ acc config default-template py

Check template

$ acc templates
search template directories in /Users/xxxxxxxxxx/Library/Preferences/atcoder-cli-nodejs
NAME  SUBMIT-PROGRAM
py    main.py

Directory creation

The example below is for creating a directory for AtCoder Bergginer Contest 154. A file of main.py and test input and output is created.

$ acc new abc154
$ tree
.
├── a
│   ├── main.py
│   └── tests
│       ├── sample-1.in
│       ├── sample-1.out
│       ├── sample-2.in
│       └── sample-2.out
├── b
│   ├── main.py
│   └── tests
│       ├── sample-1.in
│       ├── sample-1.out
│       ├── sample-2.in
│       ├── sample-2.out
│       ├── sample-3.in
│       └── sample-3.out
├── c
│   ├── main.py
│   └── tests
│       ├── sample-1.in
│       ├── sample-1.out
│       ├── sample-2.in
│       ├── sample-2.out
│       ├── sample-3.in
│       └── sample-3.out
├── contest.acc.json
├── d
│   ├── main.py
│   └── tests
│       ├── sample-1.in
│       ├── sample-1.out
│       ├── sample-2.in
│       ├── sample-2.out
│       ├── sample-3.in
│       └── sample-3.out
├── e
│   ├── main.py
│   └── tests
│       ├── sample-1.in
│       ├── sample-1.out
│       ├── sample-2.in
│       ├── sample-2.out
│       ├── sample-3.in
│       ├── sample-3.out
│       ├── sample-4.in
│       └── sample-4.out
└── f
    ├── main.py
    └── tests
        ├── sample-1.in
        ├── sample-1.out
        ├── sample-2.in
        └── sample-2.out

12 directories, 41 files

test

Once the program is complete, test it using ʻonline-judge-tools` (atcoder-cli has no test commands)

$ oj t -c "python3 main.py" -d ./tests/

In my case, I put alias so that I can test with only the test command in the directory of the target problem.

$ vim ~/.bash_profile

#Add the following
alias test='oj t -c "python3 main.py" -d ./tests/'

$ source ~/.bash_profile

Run the test command in the directory of interest

$ pwd
/xxxxx/atcoder/problem/abc151/a
$ test

If you want to test in a test case other than the problem statement, such as during debugging, execute the program normally and enter the test case. In the case of the following programs

n = int(input()) 
print(n)

Check if the expected result is returned by getting the output by executing and inputting as follows.

$ python main.py
1 #input
1 #output

Submission

By executing the following command in the directory in question, it will automatically jump to the AtCoder page and submit it.

$ acc s

reference

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