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---
language:
- ja
license: cc-by-sa-4.0
size_categories:
- 1K<n<10K
dataset_info:
features:
- name: contest
dtype: string
- name: contest_url
dtype: string
- name: url
dtype: string
- name: alphabet
dtype: string
- name: name
dtype: string
- name: score
dtype: string
- name: correct
dtype: int64
- name: total
dtype: int64
- name: editorials
list:
- name: content
dtype: string
- name: text
dtype: string
- name: url
dtype: string
- name: task_content
dtype: string
splits:
- name: train
num_bytes: 2980019
num_examples: 1478
download_size: 1380260
dataset_size: 2980019
configs:
- config_name: default
data_files:
- split: train
path: data/train-*
tags:
- math
---
# OnlineMathContest 1.4k
1.4k pairs dataset of math problems and their solutions in Japanese scraped from [OnlineMathContest](https://onlinemathcontest.com/).
**Notice: All problems and solutions have source urls (the `url` field), and their authors and OnlineMathContest own the copyrights.**
## Dataset fields
- `contest`: Name of the contest that contains each problem.
- `contest_url`: The url of a contest that contains each problem.
- `url`: The url of each problem.
- `alphabet`: The alphabet of each problem. (e.g. `A`, `B`, ...)
- `name`: The name of each problem.
- `score`: The number of points earned for solving each problem.
- `correct`: The number of people who could solve each problem during their contest.
- `total`: The total number of people who tried to solve each problem during their contest.
- `editorials`: The solution and explanation of each problem by the author or volunteers.
- `url`: The url of each solution.
- `name`: The name of each solution. (e.g. `公式解説`)
- `content`: The content text of each solution. This might be null sometimes.
- `task_content`: The content text of each problem.
`editorials.content` and `task_content` uses Markdown and [KaTeX](https://katex.org/) markup.
## Example
```json
{
"contest": "OMC215 (お茶ゼミ√+杯)",
"contest_url": "https://onlinemathcontest.com/contests/omc215",
"url": "https://onlinemathcontest.com/contests/omc215/tasks/9284",
"alphabet": "A",
"name": "OMC215(A)",
"score": "100",
"correct": 387,
"total": 412,
"editorials": [
{
"content": "$$\\frac{a^2-1001a+1001^2}{b^2-1001b+1001^2}\\leq\\frac{\\max\\lbrace a^2-1001a+1001^2\\rbrace}{\\min\\lbrace b^2-1001b+1001^2\\rbrace}$$\r\nであり，等号が成立するのは $a=1,1000$ かつ $b=500,501$ のときであるので解答すべき値は\r\n$$(1+500)+(1+501)+(1000+500)+(1000+501)=\\mathbf{4004}.$$",
"text": "公式解説",
"url": "https://onlinemathcontest.com/contests/omc215/editorial/9284"
}
],
"task_content": " $1\\leq a\\leq 1000, ~ 1\\leq b\\leq 1000$ なる整数 $a,b$ について，\r\n$$\\frac{a^2-1001a+1001^2}{b^2-1001b+1001^2}$$\r\nがありうる最大の値をとるとき，$a+b$ としてありうる値の総和を求めてください．"
}
```
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