feat: add past contests

.gitignore

@@ -4,6 +4,7 @@
 /node_modules
 /solution/result.json
 /solution/contest.json
+/solution/contest_list.json
 /solution/raw.json
 /lcof/lcof.json
 /lcof/lcof_list.json

README.md

@@ -26,6 +26,7 @@
 ## 算法全解
 
 -   [LeetCode](/solution/README.md)
+-   [往期竞赛合集](/solution/CONTEST_README.md)
 -   [剑指 Offer（第 2 版）](/lcof/README.md)
 -   [剑指 Offer（专项突击版）](/lcof2/README.md)
 -   [程序员面试金典（第 6 版）](/lcci/README.md)

README_EN.md

@@ -26,6 +26,7 @@ Complete solutions to [LeetCode](https://leetcode.com/problemset/all/), [LCOF](h
 ## Solutions
 
 -   [LeetCode](/solution/README_EN.md)
+-   [Past Contests](/solution/CONTEST_README_EN.md)
 -   [LCOF: Coding Interviews, 2nd Edition](/lcof/README_EN.md)
 -   [LCCI: Cracking the Coding Interview, 6th Edition](/lcci/README_EN.md)
 

solution/contest.py

@@ -1,5 +1,6 @@
 import json
 import time
+from itertools import chain
 
 import requests
 
@@ -11,6 +12,15 @@ biweekly_url = 'https://leetcode.cn/contest/api/info/biweekly-contest-{}/'
 questions = {}
 
 
+def format_time(timestamp):
+    return time.strftime('%Y-%m-%d %H:%M', time.localtime(timestamp))
+
+
+def format_duration(seconds):
+    m = seconds // 60
+    return f'{m} 分钟'
+
+
 def weekly(contest):
     url = weekly_url.format(contest)
     time.sleep(1)
@@ -47,13 +57,17 @@ def handle(result: dict):
         questions[q['title_slug']] = {
             'contest_title': result['title'],
             'contest_title_en': result['title_en'],
-            'contest_title_slug': result['contest']['title_slug']
+            'contest_title_slug': result['contest']['title_slug'],
+            'contest_id': result['contest']['id'],
+            'contest_start_time': result['contest']['origin_start_time'],
+            'contest_duration': result['contest']['duration']
         }
 
 
 def run():
     weekly_res = []
     biweekly_res = []
+    contest_list = []
     for i in weekly_range:
         res = weekly(i)
         if res and 'error' in res:
@@ -64,10 +78,59 @@ def run():
         if res and 'error' in res:
             break
         biweekly_res.append(res)
-    for v in weekly_res + biweekly_res:
+    for v in chain(weekly_res, biweekly_res):
         handle(v)
+        contest_list.append([
+            v['contest']['id'], v['title'], v['title_en'], v['questions'], v['contest']['start_time'],
+            v['contest']['duration']
+        ])
+
+    contest_list.sort(reverse=True)
     with open("contest.json", 'w', encoding='utf-8') as f:
         f.write(json.dumps(questions))
+    with open('contest_list.json', 'w', encoding='utf-8') as f:
+        f.write(json.dumps(contest_list))
 
 
-run()
+# ["id", "title", "title_en", "questions", "start_time", "duration"]
+
+def generate_contest_list():
+    with open('./result.json', 'r', encoding='utf-8') as f:
+        result = json.loads(f.read())
+        m = {item['question_title_slug']: item for item in result}
+    with open('contest_list.json', 'r', encoding='utf-8') as f:
+        contest_list = list(json.loads(f.read()))
+
+    contest_readme_prefix = """# 力扣竞赛\n\n[English Version](/solution/CONTEST_README_EN.md)\n\n
+## 赛后估分网站\n\nhttps://lcpredictor.herokuapp.com/\n\n## 往期竞赛\n\n"""
+    contest_readme_en_prefix = """# LeetCode Contest\n\n[中文文档](/solution/CONTEST_README.md)\n\n
+## Rating Predictor\n
+Get your rating changes right after the completion of LeetCode contests, https://lcpredictor.herokuapp.com/\n
+## Past Contests\n\n"""
+
+    items = []
+    en_items = []
+
+    for cid, title, title_en, qs, start_time, duration in contest_list:
+        v = "#### " + title + f'({format_time(start_time) + ", " + format_duration(duration)})' + "\n\n"
+        v_en = "#### " + title_en + "\n\n"
+        for q in qs:
+            slug = q['title_slug']
+            data = m.get(slug)
+            if data is None:
+                continue
+            v += f'- [{str(int(data["frontend_question_id"])) + ". " + data["title_cn"]}]({data["relative_path_cn"]})\n'
+            v_en += f'- [{str(int(data["frontend_question_id"])) + ". " + data["title_en"]}]({data["relative_path_en"]})\n'
+        if qs:
+            items.append(v)
+            en_items.append(v_en)
+    content_cn = contest_readme_prefix + "\n\n".join(items)
+    content_en = contest_readme_en_prefix + "\n\n".join(en_items)
+    with open("CONTEST_README.md", 'w', encoding='utf-8') as f:
+        f.write(content_cn)
+    with open("CONTEST_README_EN.md", 'w', encoding='utf-8') as f:
+        f.write(content_en)
+
+
+# run()
+generate_contest_list()