1961-检查字符串是否为数组前缀(Check If String Is a Prefix of Array) 原文链接: https://leetcode-cn.com/problems/check-if-string-is-a-prefix-of-array 英文原文Given a string s and an array of strin 2021-12-03 字符串数组 简单
1962-移除石子使总数最小(Remove Stones to Minimize the Total) 原文链接: https://leetcode-cn.com/problems/remove-stones-to-minimize-the-total 英文原文You are given a 0-indexed integer array 2021-12-03 堆(优先队列)数组 中等
1964-找出到每个位置为止最长的有效障碍赛跑路线(Find the Longest Valid Obstacle Course at Each Position) 原文链接: https://leetcode-cn.com/problems/find-the-longest-valid-obstacle-course-at-each-position 英文原文You want to build s 2021-12-03 二分查找数组树状数组 困难
1963-使字符串平衡的最小交换次数(Minimum Number of Swaps to Make the String Balanced) 原文链接: https://leetcode-cn.com/problems/minimum-number-of-swaps-to-make-the-string-balanced 英文原文You are given a 0-index 2021-12-03 双指针字符串栈贪心 中等
1967-作为子字符串出现在单词中的字符串数目(Number of Strings That Appear as Substrings in Word) 原文链接: https://leetcode-cn.com/problems/number-of-strings-that-appear-as-substrings-in-word 英文原文Given an array of strin 2021-12-03 字符串 简单
1969-数组元素的最小非零乘积(Minimum Non-Zero Product of the Array Elements) 原文链接: https://leetcode-cn.com/problems/minimum-non-zero-product-of-the-array-elements 英文原文You are given a positive int 2021-12-03 数学贪心递归 中等
1970-你能穿过矩阵的最后一天(Last Day Where You Can Still Cross) 原文链接: https://leetcode-cn.com/problems/last-day-where-you-can-still-cross 英文原文There is a 1-based binary matrix where 0 2021-12-03 二分查找并查集广度优先搜索数组深度优先搜索矩阵 困难
1991-找到数组的中间位置(Find the Middle Index in Array) 原文链接: https://leetcode-cn.com/problems/find-the-middle-index-in-array 英文原文Given a 0-indexed integer array nums, find t 2021-12-03 前缀和数组 简单
1993-树上的操作(Operations on Tree) 原文链接: https://leetcode-cn.com/problems/operations-on-tree 英文原文You are given a tree with n nodes numbered from 0 to n - 2021-12-03 哈希表广度优先搜索树设计 中等
1994-好子集的数目(The Number of Good Subsets) 原文链接: https://leetcode-cn.com/problems/the-number-of-good-subsets 英文原文You are given an integer array nums. We call a s 2021-12-03 位运算动态规划数学数组状态压缩 困难