complete 100

Author: danghoangnhan

.vscode/settings.json

@@ -45,6 +45,7 @@
         "ostream": "cpp",
         "stdexcept": "cpp",
         "streambuf": "cpp",
-        "typeinfo": "cpp"
+        "typeinfo": "cpp",
+        "bitset": "cpp"
     }
 }

100.same-tree.cpp

@@ -0,0 +1,32 @@
+/*
+ * @lc app=leetcode id=100 lang=cpp
+ *
+ * [100] Same Tree
+ */
+
+// @lc code=start
+/**
+ * Definition for a binary tree node.
+ * struct TreeNode {
+ *     int val;
+ *     TreeNode *left;
+ *     TreeNode *right;
+ *     TreeNode() : val(0), left(nullptr), right(nullptr) {}
+ *     TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
+ *     TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}
+ * };
+ */
+class Solution {
+public:
+    bool isSameTree(TreeNode* p, TreeNode* q) {
+        if (p==NULL&&q==NULL)return true;
+        if (p!=NULL&&q==NULL 
+            ||  p==NULL&&q!=NULL)return false;
+        
+        return p->val == q->val 
+        && isSameTree(p->left , q->left)
+        && isSameTree(p->right, q->right);
+    }
+};
+// @lc code=end
+