classSolution:def_largestNumber(self,nums:List[int])->str:"""利用sorted和cmp_to_key"""fromfunctoolsimportcmp_to_key#先通过map函数将nums转换为字符串temp=list(map(str,nums))temp.sort(key=cmp_to_key(lambdax,y:int(x+y)-int(y+x)),reverse=True)return''.join(tempiftemp[0]!='0'else'...
https://leetcode.com/problems/kth-largest-element-in-an-array/ Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For example, Given [3,2,1,5,6,4] and k = 2, return 5. Note: You may ...
演示代码: fromtypingimportListimportrandomdeffindKthLargest(nums:List[int],k:int)->int:# 将问题转化为寻找第n-k个最小元素k=len(nums)-kdefquickSelect(l,r):pivot,p=nums[r],l# 将小于等于pivot的元素移动到左侧foriinrange(l,r):ifnums[i]<=pivot:nums[p],nums[i]=nums[i],nums[p]p+=1...
636.Kth Largest Element in an Array 1.Problem Find thekth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. 题意很简单,找到一个一维数组中的第K大的数并返回。数组中第K大的数也是面试中经常考察的问题。现在就借...
Given an integer arraynumsand an integerk, returnthekthlargest element in the array. Note that it is thekthlargest element in the sorted order, not thekthdistinct element. Can you solve it without sorting? Example 1: Input:nums = [3,2,1,5,6,4], k = 2Output:5 ...
Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For example, Given [3,2,1,5,6,4] and k = 2, return 5. Note: You may assume k is always valid, 1 ≤ k ≤ array's length. ...
LeetCode: 215. Kth Largest Element in an Array 题目描述 Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. ...
英文网址:215. Kth Largest Element in an Array。 中文网址:215. 数组中的第K个最大元素。 思路分析 求解关键:这是一个常规问题,使用借用快速排序的 partition 的思想完成。关键在于理解 partition 的返回值,返回值是拉通了整个数组的索引值,这一点是非常重要的,不要把问题想得复杂了。
215. 数组中的第K个最大元素 - 给定整数数组 nums 和整数 k,请返回数组中第 k 个最大的元素。 请注意,你需要找的是数组排序后的第 k 个最大的元素,而不是第 k 个不同的元素。 你必须设计并实现时间复杂度为 O(n) 的算法解决此问题。 示例 1: 输入: [3,2,1,5,6,4]
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