add line

Author: Gtavexir

construct-binary-tree-from-preorder-and-inorder-traversal/ys-han00.cpp

@@ -37,4 +37,4 @@ class Solution {
 
         return dfs(preorder, 0, inorder.size() - 1);
     }
-};
+};

longest-palindromic-substring/ys-han00.cpp

@@ -23,4 +23,4 @@ class Solution {
 
         return s.substr(max_s, max_e - max_s + 1);
     }
-};
+};

rotate-image/ys-han00.cpp

@@ -16,4 +16,4 @@ class Solution {
             bottom--;
         }
     }
-};
+};