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LeetCode 0153 Find Minimum in Rotated Sorted Array

原题传送门 1. 题目描述 2. Solution 1 1、思路分析 一个不包含重复的升序数组在经过旋转之后,可以得到下面可视化的折线图: 以nums = [4, 5, 6, 7, 0, 1, 2]为例,考虑数组终点最后一个元素x=2,在最小值0右侧的元素(不包括最后一个元素本身),它们的值一定都严格小于x=2;而在最小值左

LeetCode 0081 Search in Rotated Sorted Array II

原题传送门 1. 题目描述 2. Solution 1 1、思路分析 The idea is the same as the previous one without duplicates 1) everytime check if target == nums[mid], if so, we find it. 2) otherwise, we check if the first half is in order (i.e. nums[left]<=nums[mid]) and i

【luogu AT2155】Rotated Palindromes(容斥)(DP)

Rotated Palindromes 题目链接:luogu AT2155 题目大意 问你有多少个长度为 n 的数组满足你可以通过不断的把第一个数放到最后一个位置上,使得这个数组变成一个回文串。 思路 首先想到一个显然错误的东西: 直接考虑先正常一个回文串 \((\frac{n+1}{2})^k\),然后它会有 \(n\) 种移位,但因

Search in Rotated Sorted Array - 循环有序数组查找问题

两道题  33. Search in Rotated Sorted Array https://leetcode.com/problems/search-in-rotated-sorted-array/ 81. Search in Rotated Sorted Array II https://leetcode.com/problems/search-in-rotated-sorted-array-ii/ 这两道题都是属于循环有序数组的查找问题,无论是查

Search in Rotated Sorted Array - 循环有序数组查找问题

两道题  33. Search in Rotated Sorted Array https://leetcode.com/problems/search-in-rotated-sorted-array/  81. Search in Rotated Sorted Array II https://leetcode.com/problems/search-in-rotated-sorted-array-ii/ 这两道题都是属于循环有序数组的查找问题,无论是查

LeetCode 33. Search in Rotated Sorted Array

题目描述 There is an integer array nums sorted in ascending order (with distinct values). Prior to being passed to your function, nums is possibly rotated at an unknown pivot index k (1 <= k < nums.length) such that the resulting array is [nums[k], nums

LeetCode 153. Find Minimum in Rotated Sorted Array - 二分查找(Binary Search)系列题9

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: [4,5,6,7,0,1,2] if it was rotated 4 times.[0,1,2,4,5,6,7] if it was rotated 7 times. Notice

搜索旋转排序数组 Search in Rotated Sorted Array II

文章目录 搜索旋转排序数组 Search in Rotated Sorted Array II思路Tag 搜索旋转排序数组 Search in Rotated Sorted Array II There is an integer array nums sorted in non-decreasing order (not necessarily with distinct values). Before being passed to your fu

#154 Find Minimum in Rotated Sorted Array II

Description Suppose an array of length n sorted in ascending order is rotated between 1 and n times. For example, the array nums = [0,1,4,4,5,6,7] might become: [4,5,6,7,0,1,4] if it was rotated 4 times.[0,1,4,4,5,6,7] if it was rotated 7 times. Notice t

81. Search in Rotated Sorted Array II

仅供自己学习 思路: 思路比较简单,但要注意细节处理。 一开始就是想遍历寻找nums[i]<nums[i-1]获得旋转点,然后对这两侧的数组分别使用二分搜索,但是一直报错,找不到原因。 根据题解二分可知二分的本质是二段性,而非单调性。只要一段满足某个性质,另外一段不满足这个性质就可以用二分。

DEVMODE 结构体

//转自:https://blog.csdn.net/zb774095236/article/details/101058311 //爬行的菜鸟typedef struct _devicemode { TCHAR dmDeviceName[CCHDEVICENAME]; //打印机(显示设备)名称 WORD dmSpecVersion; WORD dmDriverVersion; //驱动版本号 WORD dmSize; //结构体大小

[LeetCode 33.] Search in Rotated Sorted Array

LeetCode 33. Search in Rotated Sorted Array 题目描述 You are given an integer array nums sorted in ascending order (with distinct values), and an integer target. Suppose that nums is rotated at some pivot unknown to you beforehand (i.e., [0,1,2,4,5,6,7] might

[LeetCode] 33. Search in Rotated Sorted Array(搜索旋转有序数组)

Difficulty: Medium Related Topics: Array, Binary Search Link: https://leetcode.com/problems/search-in-rotated-sorted-array/ Description You are given an integer array nums sorted in ascending order, and an integer target. 给定一个升序排序的整数数组

【LeetCode】153. Find Minimum in Rotated Sorted Array 寻找旋转排序数组中的最小值(Medium)(JAVA)

【LeetCode】153. Find Minimum in Rotated Sorted Array 寻找旋转排序数组中的最小值(Medium)(JAVA) 题目地址: https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ 题目描述: Suppose an array of length n sorted in ascending order is rotated between 1

0081. Search in Rotated Sorted Array II (M)

Search in Rotated Sorted Array II (M) 题目 Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,0,1,2,2,5,6] might become [2,5,6,0,0,1,2]). You are given a target value to search. If found in the array ret

154. Find Minimum in Rotated Sorted Array II

Hard 692191Add to ListShare Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e.,  [0,1,2,4,5,6,7] might become  [4,5,6,7,0,1,2]). Find the minimum element. The array may contain duplicates. Example 1: In

刷题33. Search in Rotated Sorted Array

一、题目说明 这个题目是33. Search in Rotated Sorted Array,说的是在一个“扭转”的有序列表中,查找一个元素,时间复杂度O(logn)。 二、我的解答 这是一个查找,根据复杂度,我们知道只能用二分查找。但由于这个不是一个完全的有序列表,故需要改造。先写出二分查找(来源于数据结构): 二分查

788. Rotated Digits*

788. Rotated Digits* https://leetcode.com/problems/rotated-digits/ 题目描述 X is a good number if after rotating each digit individually by 180 degrees, we get a valid number that is different from X. Each digit must be rotated - we cannot choose to le

[LeetCode 解题报告]033. Search in Rotated Sorted Array

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). You are given a target value to search. If found in the array return its index, otherwise return -1. Y

【SDOI2018】反回文串(【ARC064 F】Rotated Palindromes 加强版)

题意   给你一个正整数 \(n\),求有多少字符集为 \(1\) 到 \(k\) 之间整数的字符串,使得该字符串可以由一个长度为 \(n\) 的回文串循环移位得到。   ARC原题 \(100\%\) 的数据是 \(n,k\le 10^9\)   SDOI改编后,\(30\%\) 的数据是 \(n,k\le 10^{10}\),\(60\%\) 的数据是 \(n,k\le

search-in-rotated-sorted-array

/** * Suppose a sorted array is rotated at some pivot unknown to you beforehand. * (i.e.,0 1 2 4 5 6 7might become4 5 6 7 0 1 2). * You are given a target value to search. If found in the array return its index, otherwise return -1. * You may assume no du

LeetCode 153. Find Minimum in Rotated Sorted Array寻找旋转排序数组中的最小值 (C++)

题目: Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e.,  [0,1,2,4,5,6,7] might become  [4,5,6,7,0,1,2]). Find the minimum element. You may assume no duplicate exists in the array. Example 1: Input: [3,4,5,

LeetCode 788. 旋转数字(Rotated Digits) 36

788. 旋转数字 788. Rotated Digits 题目描述 我们称一个数 X 为好数, 如果它的每位数字逐个地被旋转 180 度后,我们仍可以得到一个有效的,且和 X 不同的数。要求每位数字都要被旋转。 如果一个数的每位数字被旋转以后仍然还是一个数字, 则这个数是有效的。0, 1, 和 8 被旋转后仍然是

二分之33. Search in Rotated Sorted Array

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). You are given a target value to search. If found in the array return its index, otherwise return -1. You m

LeetCode-153 Find Minimum in Rotated Sorted Array

题目描述 Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e.,  [0,1,2,4,5,6,7] might become  [4,5,6,7,0,1,2]). Find the minimum element. You may assume no duplicate exists in the array.   题目大意 一个原本有