Leetcode - 随笔分类(第9页) - Beserious

leetcode 605. Can Place Flowers

摘要：Suppose you have a long flowerbed in which some of the plots are planted and some are not. However, flowers cannot be planted in adjacent plots - they 阅读全文

posted @ 2017-07-29 10:17 Beserious 阅读(374) 评论(0) 推荐(0) 编辑

leetcode 219. Contains Duplicate II

摘要：Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the 阅读全文

posted @ 2017-07-29 09:35 Beserious 阅读(149) 评论(0) 推荐(0) 编辑

leetcode 283. Move Zeroes

摘要：Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements. For example, giv 阅读全文

posted @ 2017-07-28 17:21 Beserious 阅读(151) 评论(0) 推荐(0) 编辑

leetcode 217. Contains Duplicate

摘要：Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr 阅读全文

posted @ 2017-07-28 16:34 Beserious 阅读(196) 评论(0) 推荐(0) 编辑

leetcode 628. Maximum Product of Three Numbers

摘要：Given an integer array, find three numbers whose product is maximum and output the maximum product. Example 1: Example 2: Note: 排序，然后前后枚举一下就行了 3种情况。或阅读全文

posted @ 2017-07-28 16:22 Beserious 阅读(143) 评论(0) 推荐(0) 编辑

leetcode 268. Missing Number

摘要：Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example,Given nums = [0, 1, 阅读全文

posted @ 2017-07-28 16:03 Beserious 阅读(140) 评论(0) 推荐(0) 编辑

448. Find All Numbers Disappeared in an Array

摘要：Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n] 阅读全文

posted @ 2017-07-28 15:58 Beserious 阅读(146) 评论(0) 推荐(0) 编辑

leetcode 485. Max Consecutive Ones

摘要：Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Note: The input array will only contain 0 and 1. The length 阅读全文

posted @ 2017-07-28 12:09 Beserious 阅读(144) 评论(0) 推荐(0) 编辑

496. Next Greater Element I

摘要：You are given two arrays (without duplicates) nums1 and nums2 where nums1’s elements are subset of nums2. Find all the next greater numbers for nums1' 阅读全文

posted @ 2017-07-28 11:39 Beserious 阅读(132) 评论(0) 推荐(0) 编辑

leetcode 463. Island Perimeter

摘要：You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ve 阅读全文

posted @ 2017-07-28 10:19 Beserious 阅读(133) 评论(0) 推荐(0) 编辑

leetcode 637. Average of Levels in Binary Tree

摘要：Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array. Example 1: Note: 阅读全文

posted @ 2017-07-28 10:03 Beserious 阅读(165) 评论(0) 推荐(0) 编辑

412. Fizz Buzz

摘要：Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the numbe 阅读全文

posted @ 2017-07-28 09:55 Beserious 阅读(177) 评论(0) 推荐(0) 编辑

leetcode 566. Reshape the Matrix

摘要：In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original data. 阅读全文

posted @ 2017-07-28 09:42 Beserious 阅读(155) 评论(0) 推荐(0) 编辑

leetcode 575. Distribute Candies

摘要：Given an integer array with even length, where different numbers in this array represent different kinds of candies. Each number means one candy of th 阅读全文

posted @ 2017-07-28 09:32 Beserious 阅读(219) 评论(0) 推荐(0) 编辑

344. Reverse String

摘要：Write a function that takes a string as input and returns the string reversed. Example:Given s = "hello", return "olleh". 反转字符串，逼我不用 reverse 阅读全文

posted @ 2017-07-27 22:02 Beserious 阅读(84) 评论(0) 推荐(0) 编辑

557. Reverse Words in a String III

摘要：Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. E 阅读全文

posted @ 2017-07-27 21:40 Beserious 阅读(160) 评论(0) 推荐(0) 编辑

500. Keyboard Row

摘要：Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. Examp 阅读全文

posted @ 2017-07-27 21:21 Beserious 阅读(157) 评论(0) 推荐(0) 编辑

476. Number Complement

摘要：Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: Example 1: Exa 阅读全文

posted @ 2017-07-27 20:15 Beserious 阅读(134) 评论(0) 推荐(0) 编辑

561. Array Partition I

摘要：Given an array of 2n integers, your task is to group these integers into n pairs of integer, say (a1, b1), (a2, b2), ..., (an, bn) which makes sum of 阅读全文

posted @ 2017-07-27 19:45 Beserious 阅读(116) 评论(0) 推荐(0) 编辑

617. Merge Two Binary Trees

摘要：Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n 阅读全文

posted @ 2017-07-27 17:04 Beserious 阅读(145) 评论(0) 推荐(0) 编辑

随笔分类 - Leetcode