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268. 丢失的数字 - 给定一个包含 [0, n] 中 n 个数的数组 nums ,找出 [0, n] 这个范围内没有出现在数组中的那个数。 示例 1: 输入:nums = [3,0,1] 输出:2 解释:n = 3,因为有 3 个数字,所以所有的数字都在范围 [0,3] 内。2 是丢失的数字,因为它没有出现在 nums
刷完这道题就可以试试力扣的No674.最长连续递增序列，类型基本差不多。一刷执行耗时beat 98.68% 内存...
No.ProblemLeetCode力扣PythonGoSolutionDifficultyTag 0017 Letter Combinations of a Phone Number LeetCode 力扣 Python CSDN Medium 回溯、暴力 0034 Find First and Last Position of Element in Sorted Array LeetCode 力扣 Python CSDN Medium 二分 0039 Combination Sum LeetCode 力扣 Python CSDN Medium 回溯 ...
Leetcode serials problem: 1136. Parallel Courses 1494. Parallel Courses II 2050. Parallel Courses III 1136. Parallel Courses You are given an integern, which indicates that there arencourses labeled from1ton. You are also given an array relations whererelations[i] = [prevCoursei, nextCoursei]...
218. The Skyline Problem 253. Meeting Rooms II 排序 969. Pancake Sorting 347. Top K Frequent Elements 桶排序 296. Best Meeting Point Lint-139. Subarray Sum Closest 643. Maximum Average Subarray I 644. Maximum Average Subarray II 二分法,尺举法 ...
For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows. 32 : 32 [−2^31, 2^31 − 1] 0 10 190 [−2^31, 2^31 − 1] 0 package leetcode func reverse7(x int) int { tmp := 0 for x != 0 { tmp = tmp*10 + x%10 x...
For simplicity, not mentioned rules should be ignored in this problem. For example, you don't need to reveal all the unrevealed mines when the game is over, consider any cases that you will win the game or flag any squares. 解题思路:1...
请你设计并实现一个满足LRU (最近最少使用) 缓存约束的数据结构。 实现LRUCache类: LRUCache(int capacity)以正整数作为容量capacity初始化 LRU 缓存 int get(int key)如果关键字key存在于缓存中,则返回关键字的值,否则返回-1。 void put(int key, int value)如果关键字key已经存在,则变更其数据值value;如果...
挣扎了一段时间,就去讨论区看解答(https://leetcode.com/problems/strong-password-checker/discuss/91003/O(n%29-java-solution-by-analyzing-changes-allowed-to-fix-each-problem)去了: 代码语言:javascript 复制 class Solution { public int strongPasswordChecker(String s) { int res = 0, a = 1, A...