aalanwyr - 博客园

2021年11月20日

摘要： Given a set of distinct positive integers nums, return the largest subset answer such that every pair (answer[i], answer[j]) of elements in this subse 阅读全文

posted @ 2021-11-20 14:04 aalanwyr 阅读(26) 评论(0) 推荐(0) 编辑

【leetcode】448. Find All Numbers Disappeared in an Array

摘要： Given an array nums of n integers where nums[i] is in the range [1, n], return an array of all the integers in the range [1, n] that do not appear in 阅读全文

posted @ 2021-11-20 13:57 aalanwyr 阅读(27) 评论(0) 推荐(0) 编辑

2021年11月19日

【leetcode】378. Kth Smallest Element in a Sorted Matrix（TOP k 问题）

摘要： Given an n x n matrix where each of the rows and columns is sorted in ascending order, return the kth smallest element in the matrix. Note that it is 阅读全文

posted @ 2021-11-19 21:51 aalanwyr 阅读(20) 评论(0) 推荐(0) 编辑

【leetcode】565. Array Nesting

摘要： You are given an integer array nums of length n where nums is a permutation of the numbers in the range [0, n - 1]. You should build a set s[k] = {num 阅读全文

posted @ 2021-11-19 21:49 aalanwyr 阅读(20) 评论(0) 推荐(0) 编辑

【leetcode】153. Find Minimum in Rotated Sorted Array

摘要： Suppose an array of length n sorted in ascending order is rotated between 1 and n times. For example, the array nums = [0,1,2,4,5,6,7] might become: [ 阅读全文

posted @ 2021-11-19 21:44 aalanwyr 阅读(30) 评论(0) 推荐(0) 编辑

【leetcode】598. Range Addition II

摘要： You are given an m x n matrix M initialized with all 0's and an array of operations ops, where ops[i] = [ai, bi] means M[x][y] should be incremented b 阅读全文

posted @ 2021-11-19 21:33 aalanwyr 阅读(33) 评论(0) 推荐(0) 编辑

【leetcode】633. Sum of Square Numbers（two-sum 变形）

摘要： Given a non-negative integer c, decide whether there're two integers a and b such that a2 + b2 = c. 只要是two_sum 变形都可以考虑用hash_set来做。 class Solution { p 阅读全文

posted @ 2021-11-19 21:30 aalanwyr 阅读(35) 评论(0) 推荐(0) 编辑

【leetcode】170. Two Sum III - Data structure design 两数之和之三 - 数据结构设计

摘要： Design and implement a TwoSum class. It should support the following operations: add and find. add - Add the number to an internal data structure. fin 阅读全文

posted @ 2021-11-19 21:27 aalanwyr 阅读(23) 评论(0) 推荐(0) 编辑

【leetcode】1. Two Sum

摘要： Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each inp 阅读全文

posted @ 2021-11-19 21:26 aalanwyr 阅读(18) 评论(0) 推荐(0) 编辑

【leetcode】167. Two Sum II - Input Array Is Sorted

摘要： Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific targe 阅读全文

posted @ 2021-11-19 21:23 aalanwyr 阅读(24) 评论(0) 推荐(0) 编辑

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