这4个题都是针对旋转的排序数组.其中153.154是在旋转的排序数组中找最小值,33.81是在旋转的排序数组中找一个固定的值.且153和33都是没有重复数值的数组,154.81都是针对各自问题的版本1增加了有重复数值的限制条件. 153.154都需要考虑是否旋转成和原数组一样的情况,特别的,154题还需要考虑10111和11101这种特殊情况无法使用二分查找. 33.81则不用考虑这些情况. 找最小值的题主要是利用最小值小于他前一个位置的数,同时也小于后一个位置的数 153. Find Mini…

[LeetCode]153. Find Minimum in Rotated Sorted Array 解题报告(Python) 标签: LeetCode 题目地址:https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/description/ 题目描述: Suppose an array sorted in ascending order is rotated at some pivot unknown to yo…

Question 153. Find Minimum in Rotated Sorted Array Solution 题目大意:给一个按增序排列的数组,其中有一段错位了[1,2,3,4,5,6]变成[4,5,6,1,2,3],把1求出来 思路:遍历,如果当前元素比前一个元素小就是这个元素了 Java实现: public int findMin(int[] nums) { int ans = nums[0]; for (int i=0; i<nums.length; i++) { int pre…

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…

Find Minimum 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 7 might become 4 5 6 7 0 1 2). Find the minimum element. You may assume no duplicate exists in the array. 与Search in Ro…

Find Minimum 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]). Find the minimum element. You may assume no duplicate exists in…

Suppose a sorted array 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. 解题思路: 本题和Java for LeetCode 033 Search in Rotated S…

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. 思路: 1.题目中指出sorted array,fi…

Suppose a sorted array 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. 分析: 这道题给出了一个有序数组,找出数组中最小的元素,其实就是找出第一个小于最后一个元素出现的位置…

Suppose a sorted array 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. 代码如下: public class Solution { public int findMin(int[] nums) { Arrays.sort(nums); return nums[0]; }…

Suppose a sorted array 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. 在一个反转了的排好序的数组中,找出最小的数 可以直接寻找. public class Solutio…

Suppose a sorted array 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. [题目分析] 一个有序的数组经过一个旋转操作,求出旋转后数组中的最小值. [思路] 一个有序的数组经…

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. 题目标签:Array, Binary Search 题目给了…

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. class Solution { public: int f…

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. class Solution { public: int f…

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…

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 that rot…

https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/description/ leetcode 的题目,binary search 的变形.去在rotated array里找最小值. Idea:分析binary search 三种cases: 1. nums[mid] > nums[r]: remove the left part: l = mid+1          e.g. 2 3 4 5 1 2 2. nu…

［抄题］: [暴力解法]: 时间分析: 空间分析: [优化后]: 时间分析: 空间分析: ［奇葩输出条件］: ［奇葩corner case］: ［思维问题］: 总算自己写出一道题来了. ［英文数据结构或算法,为什么不用别的数据结构或算法］: ［一句话思路］: 总有case过不了,可以稍微调试一下,起码把自己手写的case跑通了. class Solution { public int findMin(int[] nums) { //ini int start = 0; int end = num…

假设一个按照升序排列的有序数组从某未知的位置旋转.(比如 0 1 2 4 5 6 7 可能变成 4 5 6 7 0 1 2).找到其中最小的元素.你可以假设数组中不存在重复的元素.详见:https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/description/ Java实现: class Solution { public int findMin(int[] nums) { int low=0; int high…

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…

LintCode 159. Find Minimum in Rotated Sorted Array (Medium) LeetCode 153. Find Minimum in Rotated Sorted Array (Medium) 这题看着简单, 但是条件总容易搞错. @_@... 思路是在当前区间有序的时候立即停止, 然后某个点(详见代码)就是答案. 我没有做nums.size() == 0的判断, 因为这种情况应该抛个异常什么的, 给什么int值都可能是有效值(如果nums中的数没有…

Follow up for "Find Minimum in Rotated Sorted Array":What if duplicates are allowed? Would this affect the run-time complexity? How and why? Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might be…

二分法相关 153. Find Minimum 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 7 might become 4 5 6 7 0 1 2). Find the minimum element. You may assume no duplicate exists in the array. (M…

Leetcode之二分法专题-153. 寻找旋转排序数组中的最小值(Find Minimum in Rotated Sorted Array) 假设按照升序排序的数组在预先未知的某个点上进行了旋转. ( 例如,数组 [0,1,2,4,5,6,7] 可能变为 [4,5,6,7,0,1,2] ). 请找出其中最小的元素. 你可以假设数组中不存在重复元素. 示例 1: 输入: [3,4,5,1,2] 输出: 1 示例 2: 输入: [4,5,6,7,0,1,2] 输出: 0 很明显,我们需要用二分查找…

Suppose a sorted array 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. 这道寻找旋转有序数组的最小值肯定不能通过直接遍历整个数组来寻找,这个方法过于简单粗暴,这样的话,旋不…

Follow up for "Find Minimum in Rotated Sorted Array":What if duplicates are allowed? Would this affect the run-time complexity? How and why? Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might be…

题目 Follow up for "Find Minimum in Rotated Sorted Array": What if duplicates are allowed? Would this affect the run-time complexity? How and why? Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 migh…

Leetcode之二分法专题-154. 寻找旋转排序数组中的最小值 II(Find Minimum in Rotated Sorted Array II) 假设按照升序排序的数组在预先未知的某个点上进行了旋转. ( 例如,数组 [0,1,2,4,5,6,7] 可能变为 [4,5,6,7,0,1,2] ). 请找出其中最小的元素. 注意数组中可能存在重复的元素. 示例 1: 输入: [1,3,5] 输出: 1 示例 2: 输入: [2,2,2,0,1] 输出: 0 跟153题很像,只不过这题会有重…

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. The array may contain duplicates. Example 1: Input: [1,3,5] Output: 1…