We have a sorted array of length n which consists of both positive and negative numbers.
Now we square each of the numbers in the array.
Describe an algorithm that sorts the new squared array within O(n) time.
We have a sorted array of length n which consists of both positive and negative numbers....
1. (16 pts.) Sorted Array Given a sorted array A of n (possibly negative) distinct integers, you want to find out whether there is an index i for which Al = i. Give a divide-and-conquer algorithm that runs in time O(log n). Provide only the main idea and the runtime analysis.
Suppose you have a sorted array of positive and negative integers and would like to determine if there exist some value of x such that both x and -x are in the array. Consider the following three algorithms: Algorithm #1: For each element in the array, do a sequential search to see if its negative is also in the array. Algorithm #2:For each element in the array, do a binary search to see if its negative is also in the...
Suppose you have a sorted array of positive and negative integers and would like to determine if there exist some value of x such that both x and -x are in the array. Consider the following three algorithms: Algorithm #1: For each element in the array, do a sequential search to see if its negative is also in the array. Algorithm #2:For each element in the array, do a binary search to see if its negative is also in the...
9. When we have two sorted lists of numbers in non-descending order, and we need to merge them into one sorted list, we can simply compare the first two elements of the lists, extract the smaller one and attach it to the end of the new list, and repeat until one of the two original lists become empty, then we attach the remaining numbers to the end of the new list and it's done. This takes linear time. Now, try...
We know that binary search on a sorted array of size n takes O(log n) time. Design a similar divide-and-conquer algorithm for searching in a sorted singly linked list of size n. Describe the steps of your algorithm in plain English. Write a recurrence equation for the runtime complexity. Solve the equation by the master theorem.
When we have two sorted lists of numbers in non-descending order, and we need to merge them into one sorted list, we can simply compare the first two elements of the lists, extract the smaller one and attach it to the end of the new list, and repeat until one of the two original lists become empty, then we attach the remaining numbers to the end of the new list and it's done. This takes linear time. Now, try to...
Suppose that we are given a sorted array of distinct integers A[1, ......, n] and we want to decide whether there is an index i for which A[i] = i. Describe an efficient divide-and-conquer algorithm that solves this problem and explain the time complexity. 1. Describe the steps of your algorithm in plain English. 2. Write a recurrence equation for the runtime complexity. 3. Solve the equation by the master theorem.
6. Let T(1..n] be a sorted array of distinct integers, some of which may be negative. Give an algorithm that can find an index i such that 1 <i<n and T[i] = i, provided such an index exists. Your algorithm should take a time in O(lg n) in the worst case. Answers must be proven (or at least well justified)
4) [15 points total (5 points each)] Assume you are given a sorted array A of n numbers, where A is indexed from 1 up to n, anda number num which we wish to insert into A, in the proper sorted position. The function Search finds the minimum index i such that num should be inserted into Ali]. It searches the array sequentially until it finds the location i. Another function MakeRoom moves A[i], .., AIn] to Ali+1]...AIn+1] same sort...
In Java: In a sorted (ascending) integer array of length n with no duplicates, print all values in the range x to y. Assume both x and y are in the array. What is the worst case big O running time if there are k integers within the range?