3020. Find the Maximum Number of Elements in SubsetMy SubmissionsBack to ContestUser Accepted:5163User Tried:8859Total Accepted:5388Total Submissions:34167Difficulty:MediumYou are given an array of positive integers nums.You need to select a subset of nums which satisfies the following condition:You can place the selected elements in a 0-indexed array such that it follows the pattern: [x, x2, x4, ..., xk/2, xk, xk/2, ..., x4, x2, x] (Note that k can be be any non-negative power of 2). For example, [2, 4, 16, 4, 2] and [3, 9, 3] follow the pattern while [2, 4, 8, 4, 2] does not.Return the maximum number of elements in a subset that satisfies these conditions. Example 1:Input: nums = [5,4,1,2,2]Output: 3Explanation: We can select the subset {4,2,2}, which can be placed in the array as [2,4,2] which follows the pattern and 22 == 4. Hence the answer is 3.Example 2:Input: nums = [1,3,2,4]Output: 1Explanation: We can select the subset {1}, which can be placed in the array as [1] which follows the pattern. Hence the answer is 1. Note that we could

You are given an array of positive integers nums.You need to select a subset of nums which satisfies the following condition:You can place the selected elements in a 0-indexed array such that it follows the pattern: [x, x2, x4, ..., xk/2, xk, xk/2, ..., x4, x2, x] (Note that k can be be any non-negative power of 2). For example, [2, 4, 16, 4, 2] and [3, 9, 3] follow the pattern while [2, 4, 8, 4, 2] does not.Return the maximum number of elements in a subset that satisfies these conditions.

Minimum Number of Groups to Create a Valid AssignmentMy SubmissionsBack to ContestUser Accepted:708User Tried:4579Total Accepted:745Total Submissions:10584Difficulty:MediumYou are given a 0-indexed integer array nums of length n.We want to group the indices so for each index i in the range [0, n - 1], it is assigned to exactly one group.A group assignment is valid if the following conditions hold:For every group g, all indices i assigned to group g have the same value in nums.For any two groups g1 and g2, the difference between the number of indices assigned to g1 and g2 should not exceed 1.Return an integer denoting the minimum number of groups needed to create a valid group assignment. Example 1:Input: nums = [3,2,3,2,3]Output: 2Explanation: One way the indices can be assigned to 2 groups is as follows, where the values in square brackets are indices:group 1 -> [0,2,4]group 2 -> [1,3]All indices are assigned to one group.In group 1, nums[0] == nums[2] == nums[4], so all indices have the same value.In group 2, nums[1] == nums[3], so all indices have the same value.The number of indices assigned to group 1 is 3, and the number of indices assigned to group 2 is 2.Their difference doesn't exceed 1.It is not possible to use fewer than 2 groups because, in order to use just 1 group, all indices assigned to that group must have the same value.Hence, the answer is 2.Example 2:Input: nums = [10,10,10,3,1,1]Output: 4Explanation: One way the indices can be assigned to 4 groups is as follows, where the values in square brackets are indices:group 1 -> [0]group 2 -> [1,2]group 3 -> [3]group 4 -> [4,5]The group assignment above satisfies both conditions.It can be shown that it is not possible to create a valid assignment using fewer than 4 groups.Hence, the answer is 4. Constraints:1 <= nums.length <= 1051 <= nums[i] <= 109

Given a set of distinct positive integers, find the largest subset such that every pair of elements in the subset (i, j) satisfies either i % j = 0 or j % i = 0.For example, given the set [3, 5, 10, 20, 21], you should return [5, 10, 20]. Given [1, 3, 6, 24], return [1, 3, 6, 24]Sample Test CasesTest Case 1:Expected Output:Enter·the·elements·seperated·by·,·:1,2,3,4,8,10,16[1,·2,·4,·8,·16]Test Case 2:Expected Output:Enter·the·elements·seperated·by·,·:2,3[3]Test Case 3:Expected Output:Enter·the·elements·seperated·by·,·:3,5,10,20,21[5,·10,·20]

Write the codeGiven a set of distinct positive integers, find the largest subset such that every pair of elements in the subset (i, j) satisfies either i % j = 0 or j % i = 0.For example, given the set [3, 5, 10, 20, 21], you should return [5, 10, 20]. Given [1, 3, 6, 24], return [1, 3, 6, 24]Sample Test CasesTest Case 1:Expected Output:Enter·the·elements·seperated·by·,·:1,2,3,4,8,10,16[1,·2,·4,·8,·16]Test Case 2:Expected Output:Enter·the·elements·seperated·by·,·:2,3[3]Test Case 3:Expected Output:Enter·the·elements·seperated·by·,·:3,5,10,20,21[5,·10,·20]

100232. Minimum Operations to Exceed Threshold Value II User Accepted:4338 User Tried:7626 Total Accepted:4413 Total Submissions:13969 Difficulty:Medium You are given a 0-indexed integer array nums, and an integer k. In one operation, you will: Take the two smallest integers x and y in nums. Remove x and y from nums. Add min(x, y) * 2 + max(x, y) anywhere in the array. Note that you can only apply the described operation if nums contains at least two elements. Return the minimum number of operations needed so that all elements of the array are greater than or equal to k. Example 1: Input: nums = [2,11,10,1,3], k = 10 Output: 2 Explanation: In the first operation, we remove elements 1 and 2, then add 1 * 2 + 2 to nums. nums becomes equal to [4, 11, 10, 3]. In the second operation, we remove elements 3 and 4, then add 3 * 2 + 4 to nums. nums becomes equal to [10, 11, 10]. At this stage, all the elements of nums are greater than or equal to 10 so we can stop. It can be shown that 2 is the minimum number of operations needed so that all elements of the array are greater than or equal to 10. Example 2: Input: nums = [1,1,2,4,9], k = 20 Output: 4 Explanation: After one operation, nums becomes equal to [2, 4, 9, 3]. After two operations, nums becomes equal to [7, 4, 9]. After three operations, nums becomes equal to [15, 9]. After four operations, nums becomes equal to [33]. At this stage, all the elements of nums are greater than 20 so we can stop. It can be shown that 4 is the minimum number of operations needed so that all elements of the array are greater than or equal to 20. Constraints: 2 <= nums.length <= 2 * 105 1 <= nums[i] <= 109 1 <= k <= 109 The input is generated such that an answer always exists. That is, there exists some sequence of operations after which all elements of the array are greater than or equal to k. complete the function class Solution { public: int minOperations(vector<int>& nums, int k) { } };