给定一个整数数组nums,将数组中的元素向右轮转k个位置,其中k是非负数。 示例1: 输入:nums = [1,2,3,4,5,6,7], k = 3输出:[5,6,7,1,2,3,4]解释:向右轮转 1 步:[7,1,2,3,4,5,6]向右轮转 2 步:[6,7,1,2,3,4,5]向右轮转 3 步:[5,6,7,1,2,3,4] ...
所以,可以遍历一遍数组,然后根据数组中,值对应的数组元素是正数还是负数,把偶数的元素搞出来,在使用set做下去重,最后输出array 思路二:思路比较巧妙,利用首次出现时,数组下标对应的元素应该为正数,出现第二次时,数组下标对应的元素应该为负数,所以一旦以数组中值为下标的元素为负数时,表示该值已经出现过一次 ,现在是...
Given the arraynumsafterthe possible rotation and an integertarget, returnthe index oftargetif it is innums, or-1if it is not innums. You must write an algorithm withO(log n)runtime complexity. Example 1: Input:nums = [4,5,6,7,0,1,2], target = 0Output:4 Example 2: Input:nums...
Given an array of integers A and let n to be its length. Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a “rotation function” F on A as follow: F(k) = 0 * Bk[0] + 1 * Bk[1] + … + (n-1) * Bk[n-1]. Calculate the m...
是Search in Rotated Sorted Array的变形。与Find Minimum in Rotated Sorted Array和Find Minimum in Rotated Sorted Array II的关系十分相似。 加上了duplicates, 使得原有的通过nums[mid] 和 边界值 如nums[r]的大小关系判断前后两部分那部分带有rotation的方法不再有效。e.g. 若是nums[mid] == nums[r]...
4.median of two sorted array(hard) analysis 中值:即将一个数的序列分成左右两个等长序列,且左边序列所有元素都小于右边元素。 对于在两个list中找中值,可以使用假归并的方式,不改变list,记录归并后的元素找出(n+m)/2位置上的元素即为中值。 solution 1 ...
// Solution 1: Maintain a counter array to keep the statistics of letters. Keep two pointers on watch and count as you go. 代码1 //Code 1 4 Median of Two Sorted Arrays // #4 俩有序数组的中位数 描述:给定俩有序数组,找出把它俩合并后所得数组的中位数。要求对数时间搞定。
798.Smallest-Rotation-with-Highest-Score (H) 995.Minimum-Number-of-K-Consecutive-Bit-Flips (H-) 1094.Car-Pooling (E) 1109.Corporate-Flight-Bookings (M) 1526.Minimum-Number-of-Increments-on-Subarrays-to-Form-a-Target-Array (H-) 1589.Maximum-Sum-Obtained-of-Any-Permutation (M) 1674.Minim...
798 Smallest Rotation with Highest Score 34.30% Hard 797 All Paths From Source to Target 67.40% Medium 796 Rotate String 49.60% Easy 795 Number of Subarrays with Bounded Maximum 41.60% Medium 794 Valid Tic-Tac-Toe State 27.80% Medium 793 Preimage Size of Factorial Zeroes Function 40.80% Hard...
Given the array nums after the rotation and an integer target, return the index of target if it is in nums, or -1 if it is not in nums.Example 1:Input: nums = [4,5,6,7,0,1,2], target = 0 Output: 4 Example 2:Input: nums = [4,5,6,7,0,1,2], target = 3 Output: ...