LeetCode 331. Verify Preorder Serialization of a Binary Tree
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public class Solution { public boolean isValidSerialization(String preorder) { String[] s = preorder.split(","); int nulls = 1; for (String str : s) { if (--nulls < 0) return false; if (!str.equals("#")) nulls += 2; } return nulls == 0; }} 0 0
- leetcode 331. Verify Preorder Serialization of a Binary Tree
- [LeetCode]331. Verify Preorder Serialization of a Binary Tree
- 【LeetCode】331. Verify Preorder Serialization of a Binary Tree
- LeetCode 331. Verify Preorder Serialization of a Binary Tree
- LeetCode *** 331. Verify Preorder Serialization of a Binary Tree
- LeetCode 331. Verify Preorder Serialization of a Binary Tree
- [leetcode] 331. Verify Preorder Serialization of a Binary Tree
- leetcode 331. Verify Preorder Serialization of a Binary Tree
- [leetcode] 331. Verify Preorder Serialization of a Binary Tree
- LeetCode 331. Verify Preorder Serialization of a Binary Tree
- [leetcode]331. Verify Preorder Serialization of a Binary Tree
- [LeetCode] 331. Verify Preorder Serialization of a Binary Tree
- leetcode 331. Verify Preorder Serialization of a Binary Tree
- leetcode Verify Preorder Serialization of a Binary Tree
- Leetcode: Verify Preorder Serialization of a Binary Tree
- LeetCode Verify Preorder Serialization of a Binary Tree
- [leetcode] Verify Preorder Serialization of a Binary Tree
- [Leetcode]Verify Preorder Serialization of a Binary Tree
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