Add dependency installation step and update AtCoder statistics fetching logic

Author: MishkatIT

.github/workflows/update-stats.yml

@@ -20,6 +20,11 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: '3.12'
+
+      - name: Install dependencies
+        run: |
+          python3 -m pip install --upgrade pip
+          pip install -r requirements.txt
       
       - name: Fetch latest statistics and update README
         id: fetch_stats

README.md

@@ -3,7 +3,7 @@
 # 🏆 Problem Solving Statistics
 
 [![Last Updated](https://img.shields.io/badge/Last%20Updated-15%20January%202026-blue?style=for-the-badge)](https://github.com/MishkatIT/ProblemSolvingStats)
-[![Total Problems](https://img.shields.io/badge/Total%20Solved-4063-success?style=for-the-badge&logo=leetcode)](https://github.com/MishkatIT/ProblemSolvingStats)
+[![Total Problems](https://img.shields.io/badge/Total%20Solved-4220-success?style=for-the-badge&logo=leetcode)](https://github.com/MishkatIT/ProblemSolvingStats)
 [![Platforms](https://img.shields.io/badge/Platforms-12-orange?style=for-the-badge)](https://github.com/MishkatIT/ProblemSolvingStats)
 
 <!-- UPDATE_METADATA_START -->
@@ -36,49 +36,49 @@
       <td><strong>🔴 Codeforces</strong></td>
       <td><a href="https://codeforces.com/profile/MishkatIT">MishkatIT</a></td>
       <td align="center"><strong>2386 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-58.7%25-red?style=flat-square" alt="Codeforces Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-56.5%25-red?style=flat-square" alt="Codeforces Progress"/></td>
     </tr>
     <tr>
       <td><strong>🟢 LeetCode</strong></td>
       <td><a href="https://leetcode.com/MishkatIT/">MishkatIT</a></td>
       <td align="center"><strong>412 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-10.1%25-yellow?style=flat-square" alt="LeetCode Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-9.8%25-yellow?style=flat-square" alt="LeetCode Progress"/></td>
     </tr>
     <tr>
       <td><strong>🟣 Vjudge</strong></td>
       <td><a href="https://vjudge.net/user/MishkatIT">MishkatIT</a></td>
       <td align="center"><strong>400 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-9.8%25-blueviolet?style=flat-square" alt="Vjudge Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-9.5%25-blueviolet?style=flat-square" alt="Vjudge Progress"/></td>
     </tr>
     <tr>
       <td><strong>🟠 AtCoder</strong></td>
       <td><a href="https://atcoder.jp/users/MishkatIT">MishkatIT</a></td>
-      <td align="center"><strong>0 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-0.0%25-orange?style=flat-square" alt="AtCoder Progress"/></td>
+      <td align="center"><strong>157 <br/><small>(last updated: 15 January 2026)</small></strong></td>
+      <td><img src="https://img.shields.io/badge/Progress-3.7%25-orange?style=flat-square" alt="AtCoder Progress"/></td>
     </tr>
     <tr>
       <td><strong>🟤 CodeChef</strong></td>
       <td><a href="https://www.codechef.com/users/MishkatIT">MishkatIT</a></td>
       <td align="center"><strong>124 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-3.1%25-brown?style=flat-square" alt="CodeChef Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-2.9%25-brown?style=flat-square" alt="CodeChef Progress"/></td>
     </tr>
     <tr>
       <td><strong>⚪ CSES</strong></td>
       <td><a href="https://cses.fi/user/165802/">MishkatIT</a></td>
       <td align="center"><strong>121 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-3.0%25-lightgray?style=flat-square" alt="CSES Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-2.9%25-lightgray?style=flat-square" alt="CSES Progress"/></td>
     </tr>
     <tr>
       <td><strong>🔵 Toph</strong></td>
       <td><a href="https://toph.co/u/MishkatIT">MishkatIT</a></td>
       <td align="center"><strong>543 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-13.4%25-blue?style=flat-square" alt="Toph Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-12.9%25-blue?style=flat-square" alt="Toph Progress"/></td>
     </tr>
     <tr>
       <td><strong>🟡 LightOJ</strong></td>
       <td><a href="https://lightoj.com/user/mishkatit">MishkatIT</a></td>
       <td align="center"><strong>31 <br/><small>(last updated: 15 January 2026)</small></strong></td>
-      <td><img src="https://img.shields.io/badge/Progress-0.8%25-yellow?style=flat-square" alt="LightOJ Progress"/></td>
+      <td><img src="https://img.shields.io/badge/Progress-0.7%25-yellow?style=flat-square" alt="LightOJ Progress"/></td>
     </tr>
     <tr>
       <td><strong>🟩 SPOJ</strong></td>
@@ -108,7 +108,7 @@
   <tfoot>
     <tr>
       <td colspan="2" align="center"><strong>🎖️ TOTAL</strong></td>
-      <td align="center"><strong style="font-size: 1.2em;">4063</strong></td>
+      <td align="center"><strong style="font-size: 1.2em;">4220</strong></td>
       <td align="center"><strong>100%</strong></td>
     </tr>
   </tfoot>

requirements.txt

@@ -0,0 +1 @@
+requests>=2.31.0

update_stats.py

@@ -236,20 +236,47 @@ def get_vjudge(self):
     def get_atcoder(self):
         """Fetch AtCoder statistics."""
         try:
-            # Try API first
-            # Note: API uses lowercase username as shown in the API documentation
-            url = "https://kenkoooo.com/atcoder/atcoder-api/v3/user/submissions?user=mishkatit&from_second=0"
-            data = self.fetch_url(url, use_api=True)
-            
-            if data and isinstance(data, list):
-                # Count unique problems with AC (Accepted) result
+            # Try API first (requests handles gzip/deflate reliably)
+            # Note: API expects lowercase username
+            try:
+                import requests
+
+                url = "https://kenkoooo.com/atcoder/atcoder-api/v3/user/submissions"
+                user = "mishkatit"
+
                 solved = set()
-                for sub in data:
-                    if isinstance(sub, dict) and sub.get('result') == 'AC' and sub.get('problem_id'):
-                        solved.add(sub['problem_id'])
+                from_second = 0
+
+                # The API supports incremental fetching via from_second.
+                # Some environments may get truncated responses; loop defensively.
+                with requests.Session() as session:
+                    for _ in range(50):
+                        res = session.get(url, params={"user": user, "from_second": from_second}, timeout=30)
+                        res.raise_for_status()
+                        batch = res.json()
+
+                        if not isinstance(batch, list) or not batch:
+                            break
+
+                        max_epoch = None
+                        for sub in batch:
+                            if not isinstance(sub, dict):
+                                continue
+                            if sub.get('result') == 'AC' and sub.get('problem_id'):
+                                solved.add(sub['problem_id'])
+                            epoch = sub.get('epoch_second')
+                            if isinstance(epoch, int):
+                                max_epoch = epoch if max_epoch is None else max(max_epoch, epoch)
+
+                        if max_epoch is None or max_epoch < from_second:
+                            break
+                        from_second = max_epoch + 1
+
                 count = len(solved)
-                if 0 < count < self.MAX_REASONABLE_COUNT:
+                if 0 <= count < self.MAX_REASONABLE_COUNT:
                     return count
+            except Exception as e:
+                print(f"  AtCoder requests API failed: {e}")
 
             # Fallback to web scraping profile page
             print("  API failed, trying web scraping...")
@@ -269,7 +296,7 @@ def get_atcoder(self):
                     match = re.search(pattern, html, re.IGNORECASE)
                     if match:
                         count = int(match.group(1))
-                        if 0 < count < self.MAX_REASONABLE_COUNT:
+                        if 0 <= count < self.MAX_REASONABLE_COUNT:
                             return count
         except Exception as e:
             print(f"  Error getting AtCoder stats: {e}")