81. Search in Rotated Sorted Array II There is an integer arraynumssorted in non-decreasing order (not necessarily withdistinctvalues). Before being passed to your function,numsisrotatedat an unknown pivot indexk(0 <= k < nums.length) such that the resulting array is[nums[k], nums[k+1...
Search in Rotated Sorted Array I && II Leetcode 对有序数组进行二分查找(下面仅以非递减数组为例): 1. int binarySort(int A[], int lo, int hi, int target) 2. { 3. while(lo <= hi) 4. { 5. int mid = lo + (hi - lo)/2; 6. if(A[mid] == target) 7. return mid; 8....
【题目】 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 duplicate exists in ...
改进如下(改进如下(参考leetcode某大神的解法)) publicintsearchInRotatedSortedArray(int[] nums,inttarget){intlow=0;inthigh=nums.length-1;while(low < high){intmid=low +((high-low) >>2);if((nums[0] > target) ^ (nums[0] > nums[mid]) ^ (target > nums[mid])) low = mid+1;elseh...
Write a function to determine if a given target is in the array. The array may contain duplicates. 这道题很简单,直接遍历即可。也可以使用二分查找。 代码如下: public class Solution { /* * 最简单的就是遍历 * */ public boolean search(int[] nums, int target) ...
leetCode 33. Search in Rotated Sorted Array(c语言版本) bingo酱 I am a fighter 来自专栏 · leetcode每日斩 题目大意: 给定一个旋转升序的数组,所谓旋转就是假设把头和尾连接起来,然后找到最小那个数开始,往后开始就是升序的,直到再回到最小那个数为止。这样看起来就像一个环一样。 然后,现在给定一个数,...
LeetCode-33-搜索旋转排序数组(Search in Rotated Sorted Array)33. 搜索旋转排序数组整数数组 nums 按升序排列,数组中的值 互不相同。在传递给函数之前,nums 在预先未知的某个下标 k(0 <= k < nums.length)上进行了 旋转,使数组变为 [nums[k], nums[k+1], ..., nums[n-1], nums[0], nums[1...
1. Description Search in Rotated Sorted Array II 2. Solution class Solution{public:boolsearch(vector<int>&nums,inttarget){intsize=nums.size();intleft=0;intright=size-1;while(left<=right){intmid=(left+right)/2;if(nums[mid]==target){returntrue;}if(nums[left]==nums[mid]){left++;cont...
Search in Rotated Sorted Array II Follow up for "Search in Rotated Sorted Array": What ifduplicatesare>[1,3,1,1,1], 3 Would this affect the run-time complexity? How and why? --run-time的最坏情况是O(n)了,因为特殊情况出现的时候需要额外处理,可能做线性搜索 ...
https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array https://leetcode.com/problems/search-insert-position 思路: 由于这几道题我都用了二分法,所以就合在一起说了 首先是第33题 将一个排列好的数组如果从某一位打乱,则要么其中点左侧数组必然升序,要么右侧数组必然升序。