Implement the divide-and-conquer O(n) time
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10:24 PM
E LeetCode
Given an array nums of size n, return the majority
element.
The majority element is the element that appears
more than [n / 2] times. You may assume that
the majority element always exists in the array.
Example 1:
Input: nums =
[3,2,3]
Output: 3
Example 2:
Input: nums
[2,2,1,1,1,2,2]
Output: 2
Constraints:
n
nums.length
1 <= n <= 5 * 104
• -231 <= nums[i] <= 231 - 1
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- 9.). integer array nums and an integer k, return the length of the shortest non-empty subarray of nums with a sum of at least k. If there is no such subarray, return -1. A subarray is a contiguous part of an array. Example 1: Input: nums = [1], k = 1 Output: 1 Example 2: Input: nums = [1,2], k = 4 Output: -1 Example 3: Input: nums = [2,-1,2], k = 3 Output: 3.ALGO1(A)// A is an integer array, an index that starts at 11): for i=1 to n-1 do2): minIndex = findSmallest(A,i)3): exchange A[i] with A[minIndex] The sub-routine find the smallest(A, i) in Line 2, and returns the index of the smallest element in thesub-array A[i:n]Suppose the array below is provided as input to ALGO1 2 5 6 7 3 8 1 4 Fill in the Blanks At the end of the first iteration of the for loop (i.e. with i=1)1) a) the element at index 1 is : b) the element at index 4 is : c) the element at index 7 is :int[] cars = {1,2,3,4,5}; for (int i=0; iSales.java contains a Java program that prompts for and reads in the sales for each of 5 salespeople in a company. Now modify the program as follows: Declare an array called sales to save the sales of 5 salespeople. Complete the header of the first for loop. This loop initializes the array. Complete the header of the second for loop. This loop computes the total of array elements. Add code to compute and print the average sale. Add another loop to print the id of each salesperson and the number of their sales. The salespeople are objecting to having an id of 0—no one wants that designation. Modify your program so that the IDs run from 1-5 instead of 0-4. // *************************************************************** // Sales.java // // Reads in and stores sales for each of 5 salespeople. Displays // sales entered by salesperson id and total sales for all salespeople. // // *************************************************************** import java.util.Scanner;…Java Program Your program should use 2D arrays to implement simple matrix operations. Your program should do the following: • Read the number of rows and columns of a matrix M1 from the user. Use an input validation loop to make sure the values are greater than 0. • Read the elements of M1 in row major order • Print M1 to the console; make sure you format as a matirx • Repeat the previous steps for a second matrix M2 • Create a matrix M3 that is the transpose of M1 and print it to the console • Check if M1 and M2 can be added (should have the same dimensions). If possible, add M1 and M2 and print the result to the console. Otherwise print an error message. • Extra credit: Multiply M1 and M2 if possible and print to the console. If the matrices cannot be multiplied, print an error message. Implementation requirements: • Use a helper method for reading a positive integer using an input validation loop. • Use a helper method for printing a matrix. Your helper methods should be private and…Question: Implement a minheap using the array implementation using the values 44,42,35,33,31,27,20,19,14,10. Implement the following: • a function that will insert a given value into the minheap • a function that will delete from the minheap • a function that will search the minheap for a given valueOGiven an array arr[] of N non-negative integers representing the height of blocks. If width of each block is 1, compute how much water can be trapped between the blocks during the rainy season. Example 1: Input: N = 6 arr[] = {3,0,0,2,0,4} Output: 10.In Java write an application to Find minimum and maximum in array.An array int[] intArray can be initialized during its definition by A.) It can't be initialized B.) by writing int[] intArray = {1.0f}; C.) by writing int[] intArray = {0,1,2}; D.) by writing int[0-10] intArray = {0,1,2,3,4,5,6,7,8,9};Java programIn main() for now: do these - one at a time, each in it's own loop (we will make functions out of them later –Declare an array RandArray with 20 integers –Assign each of the 20 values with a random value from 0 to 99 Hint: Use rand()%100 For mimir: Do not call srand at the top of main. // normally: Call srand(time(0)) at the top of main –(you need #include<cstdlib>) –Write another loop that prints the array, with index values Important: If the output values do not match mimir, please add srand(17); // inside your main function - at the top code format: #include <iostream>using namespace std; #include <cstdlib> // required for rand() int main(){ srand(17); // define a constant ARRAYSIZE that is 20 // declare randArray // set the 20 elements in randArray to be a random number between 0 and 99 // hint: use rand()%100 // print the 20 values return 0;}A "peak" is an entry in an integer array that is bigger than or equal to the adjacent integers, while a "valley" is an element that is smaller than or equal to the surrounding numbers. In the array, for example, 5, 8, 6, 2, 3, 4, 6 are peaks while 5, 2 are troughs. Sort an array of numbers into an alternating series of peaks and troughs. EXAMPLEInput: {5, 3, 1, 2, 3}Output: {5, 1, 3, 2, 3}SEE MORE QUESTIONS
