LeetCode solutions written in Java
Home Page: http://t.cn/RZr84QX
一、简介
二、目录划分：
algorithm ---- 包含除LeetCode以外的其它算法，如面经等。除了这个目录以外都是LeetCode
-- interviews 面经
-- facebook 各公司的面经
array ---------- leetcode array 相关
combination -- leetcode 组合相关
... etc
三、相关网页：
i am getting the below error for https://oj.leetcode.com/problems/copy-list-with-random-pointer/
Input: {-1,-1}
Output: Random pointer of node with label -1 points to a node from the original list.
Expected: {-1,-1}
if (root == null) {
return -1;
}应该是 return 0;
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