slurm

摘要： 题目链接 "https://leetcode.com/problems/distinct subsequences/" 题目原文 Given a string S and a string T, count the number of distinct subsequences of T in S. 阅读全文

摘要： 题目链接 "https://leetcode.com/problems/flatten binary tree to linked list/" 题目原文 Given a binary tree, flatten it to a linked list in place. For example, 阅读全文