feat: updated the yml and cpp files

Author: nageshnnazare

.github/workflows/leetcode_directory_writer.yml

@@ -18,6 +18,9 @@ jobs:
       - name: Add python dependencies
         run: |
           pip install requests
+      - name: Write LeetCode DIRECTORY.md
+        run: |
+          python3 scripts/leetcode_directory_md.py 2>&1 | tee leetcode/DIRECTORY.md
       - name: Commit and push changes
         uses: stefanzweifel/git-auto-commit-action@v4
         id: commit-push

leetcode/src/2.cpp

@@ -12,8 +12,8 @@ struct ListNode {
     int val;
     ListNode *next;
     explicit ListNode() : val(0), next(nullptr) {}
-    ListNode(int x) : val(x), next(nullptr) {}
-    ListNode(int x, ListNode *next) : val(x), next(next) {}
+    explicit ListNode(int x) : val(x), next(nullptr) {}
+    explicit ListNode(int x, ListNode *next) : val(x), next(next) {}
 };
 
 class Solution {