摘要:最简分数 难度中等76 给你一个整数 n ,请你返回所有 0 到 1 之间(不包括 0 和 1)满足分母小于等于 n 的 最简 分数 。分数可以以 任意 顺序返回。 示例 1: 输入:n = 2 输出:["1/2"] 解释:"1/2" 是唯一一个分母小于等于 2 的最简分数。 示例 2: 输入:n 阅读全文 » 20220209...
Explanation: The next closest time choosing from digits 1, 9, 3, 4, is 19:39, which occurs 5 minutes later. It is not 19:33, because this occurs 23 hours and 59 minutes later. Input: "23:59" Output: "22:22" Explanation: The next closest time choosing from digits 2, 3, 5, 9...
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/** * Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) Output: 7 -> 0 -> 8 Explanation: 342 + * 465 = 807 * * 题意:对于俩个链表。对应节点相加,满十进一 * 思路:先判断对应节点是否至少存在一个有值,有则相加,然后移动节点向下,循环如此,如果说最后一次相加,进位(carry)不为0,则要显示...
Input: "00110011" Output: 6 Explanation: There are 6 substrings that have equal number of consecutive 1's and 0's: "0011", "01", "1100", "10", "0011", and "01". Notice that some of these substrings repeat and are counted the number of times they occur. Also, "00110011" is ...
* Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) Output: 7 -> 0 -> 8 Explanation: 342 + * 465 = 807 * * 题意:对于俩个链表。对应节点相加,满十进一 * 思路:先判断对应节点是否至少存在一个有值,有则相加,然后移动节点向下,循环如此,如果说最后一次相加,进位(carry)不为0,则要显示,其次...
math。初始化令最低位进位c=1,可以按照统一的模式解决。 View Code 40. Combination Sum II https://leetcode.com/problems/combination-sum-ii/?tab=Description desc DFS。首先要排序,之后要对照解空间写递归过程。 dfs 39. Combination Sum https://leetcode.com/problems/combination-sum/?tab=Description ...