本次解题使用的开发工具是eclipse,jdk使用的版本是1.8,环境是win7 64位系统,使用Java语言编写和测试。 02 第一种解法 直接解法。使用数组,在add方法里,首先将原数组扩容,将新的元素添加进数组中去,再对数组排序,然后取出倒数第k个元素。期间,借助工具类Arrays来实现数组扩容和排序。 classKthLargest{intk;int[] ...
/kth-largest-element-in-an-array/description/ 题目描述: 知识点:分治算法 思路:每次将其分成两堆数,一堆数均比某个值要大,另一堆数均小于等于某个值 本题是经典的分治算法。 时间复杂度是O(n),其中n为数组的长度。空间复杂度是O(logn)。 JAVA代码: LeetCode解题报告:智能...
Java for LeetCode 215 Kth Largest Element in an Array 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. For example, Given[3,2,1,5,6,4]and k = 2, return 5. 解题思路: 本题是《算法导论》...
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 assume k is always valid, 1 ≤...
我们直接使用 java 提供的排序算法,又因为默认是从小到大排序,所以将倒数第 k 个数返回即可。 public int findKthLargest(int[] nums, int k) { Arrays.sort(nums); return nums[nums.length - k]; } 解法二 我们没必要把所有数字正确排序,我们可以借鉴快排中分区的思想,这里不细讲了,大家可以去回顾一下快...
/kth-largest-element-in-an-array/description/ 题目描述: 知识点:分治算法 思路:每次将其分成两堆数,一堆数均比某个值要大,另一堆数均小于等于某个值 本题是经典的分治算法。 时间复杂度是O(n),其中n为数组的长度。空间复杂度是O(logn)。 JAVA代码: LeetCode解题报告:智能...
In this article, we explained how to find the largest and smallest numbers in an array in Java. The process involves initializing two variables, one for the largest and one for the smallest number, with the first element of the array.
Example: Find largest element in an array fun main(args: Array<String>) { val numArray = doubleArrayOf(23.4, -34.5, 50.0, 33.5, 55.5, 43.7, 5.7, -66.5) var largest = numArray[0] for (num in numArray) { if (largest < num) largest = num } println("Largest element = %.2f"....
[LeetCode] 215. 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. Example 1: Input:[3,2,1,5,6,4]and k = 2...
Java 四,解题过程 第一博 一,题目描述 英文描述 Design a class to find the kth largest element in a stream. Note that it is the kth largest element in the sorted order, not the kth distinct element. ...