Merge branch 'master' of https://github.com/doocs/leetcode

Author: zouwx2cs

solution/0100.Same Tree/Solution.java

@@ -0,0 +1,7 @@
+class Solution {
+    public boolean isSameTree(TreeNode p, TreeNode q) {
+        if (p==null && q==null) return true;
+        if (p==null || q==null || p.val!=q.val) return false;
+        return isSameTree(p.left,q.left) && isSameTree(p.right,q.right);
+    }
+}