1.具有n个元素的平衡二叉树,树高为㏒n,我们设这个变量为h。 2.最下层非叶节点的元素,只需做一次线性运算便可以确定大根,而这一层具有2^(h-1)个元素,我们假定O(1)=1,那么这一层元素所需时间为2^(h-1) × 1。 3.由于是bottom-top建立堆,因此在调整上层元素的时候,并不需要同下层所有元素做比较,只...
Can you solve this real interview question? GCD Sort of an Array - You are given an integer array nums, and you can perform the following operation any number of times on nums: * Swap the positions of two elements nums[i] and nums[j] if gcd(nums[i], nu
时间复杂度是O(N),空间复杂度是O(1)(元素的大小上下限已经固定). C++代码如下: classSolution{public:vector<int>sortArray(vector<int>& nums){vector<int>count(100010,0);for(intnum : nums) { count[num +50000]++; } vector<int> res;for(inti =0; i < count.size(); i ++) {while(count...
Can you solve this real interview question? Sort Array by Increasing Frequency - Given an array of integers nums, sort the array in increasing order based on the frequency of the values. If multiple values have the same frequency, sort them in decreasing
Initialization: An empty list sorted_array is created to store the merged result. Two pointers i and j are initialized to 0, pointing to the current elements of the left and right arrays, respectively. Comparison and Merging: The method iterates through both arrays, comparing the current elemen...
LeetCode #922. Sort Array By Parity II 题目922. Sort Array By Parity II解题方法设置两个奇偶指针分别指向0和1,遍历数组,分别找到第一个不符合题意的偶数位置和奇数位置,交换元素,再找下一个这样的奇偶位置组合,直到某一个指针到达数组结尾。 时间复杂度:O(n) 空间复杂度:O(1)...
Given an array of integers nums, sort the array in ascending order. Example 1: Input: [5,2,3,1] Output: [1,2,3,5] 1. 2. Example 2: Input: [5,1,1,2,0,0] Output: [0,0,1,1,2,5] 1. 2. Note: 1 <= A.length <= 10000 ...
Given an array A of non-negative integers, return an array consisting of all the even elements of A, followed by all the odd elements of A. You may return any answer array that satisfies this condition. Example 1: Input: [3,1,2,4] ...
leetCode/Array/SortArrayByParityII.py/ Jump to 47 lines (32 sloc)997 Bytes RawBlame """ Given an array A of non-negative integers, half of the integers in A are odd, and half of the integers are even. Sort the array so that whenever A[i] is odd, i is odd; and whenever A[i...
Given an array A of non-negative integers, half of the integers in A are odd, and half of the integers are even. Sort the array so that whenever A[i] is odd, i is odd; and whenever A[i] is even, i is even. You may return any answer array that satisfies this condition. Exampl...