摘要： 原题链接在这里：https://leetcode.com/problems/brace-expansion/ 题目： A string S represents a list of words. Each letter in the word has 1 or more options. If th 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/path-with-maximum-gold/ 题目： In a gold mine grid of size m * n, each cell in this mine has an integer representin 阅读全文

摘要： 原题链接在这里：https://leetcode.com/problems/letter-tile-possibilities/ 题目： You have a set of tiles, where each tile has one letter tiles[i] printed on it. R 阅读全文