chore: format code with clang-format

Author: xzhseh

solution/0300-0399/0331.Verify Preorder Serialization of a Binary Tree/Solution.java

@@ -3,10 +3,8 @@ public boolean isValidSerialization(String preorder) {
         List<String> stk = new ArrayList<>();
         for (String s : preorder.split(",")) {
             stk.add(s);
-            while (stk.size() >= 3
-                    && stk.get(stk.size() - 1).equals("#")
-                    && stk.get(stk.size() - 2).equals("#")
-                    && !stk.get(stk.size() - 3).equals("#")) {
+            while (stk.size() >= 3 && stk.get(stk.size() - 1).equals("#")
+                && stk.get(stk.size() - 2).equals("#") && !stk.get(stk.size() - 3).equals("#")) {
                 stk.remove(stk.size() - 1);
                 stk.remove(stk.size() - 1);
                 stk.remove(stk.size() - 1);

solution/0300-0399/0351.Android Unlock Patterns/Solution.cpp

@@ -29,7 +29,7 @@ class Solution {
             vis[i] = false;
             return ans;
         };
-        
+
         return dfs(1, 1) * 4 + dfs(2, 1) * 4 + dfs(5, 1);
     }
 };