EBK DATA STRUCTURES AND ALGORITHMS IN C
4th Edition
ISBN: 9781285415017
Author: DROZDEK
Publisher: YUZU
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Chapter 2, Problem 7E
Explanation of Solution
Length of longest subarray:
Given an integer array that is in increasing order, finding length of longest subarray that contains numbers that could be arranged in a continous sequence.
Worst case complexity analysis:
Refer section 2.7 in chapter 2 for given
- If line for(i=0, length = 1;i<n-1;i++) is been replaced by line for(i=0, length =1; i<n-1 && length<n-i; i++) in the given algorithm.
- The best case remains O(n), when numbers in array maintain decreasing order.
- For each n-1 executions of outer loopthe inner loop is been executed just once.
- For an ordered array, inner loop executes n-1 times and outer loop executes only once, which denotes best case.
- The worst case complexity of algorithm is still
Worst case efficiency:
Yes, the efficiency of the worst case is still
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Create a quicksort based on splitting a random sample of five items from the subarray according to their medians. Place the sample's items at the correct ends of the array so that only the median is used for partitioning. To evaluate the impact of the adjustment in contrast to the default algorithm and median-of-3 partitioning (see the preceding exercise), do doubling tests.Extra points Create a median-of-five algorithm that employs no more than seven comparisons for every given input.
Given an unsorted array A of size N that contains only positive integers, find a continuous sub-array that adds to a given number S and return the left and right index(1-based indexing) of that subarray.
In case of multiple subarrays, return the subarray indexes which come first on moving from left to right.
Note:- You have to return an ArrayList consisting of two elements left and right. In case no such subarray exists return an array consisting of element -1. Code please.
Given an unsorted array A of size N that contains only positive integers, find a continuous sub-array that adds to a given number S and return the left and right index(1-based indexing) of that subarray.
In case of multiple subarrays, return the subarray indexes which come first on moving from left to right.
Note:- You have to return an ArrayList consisting of two elements left and right. In case no such subarray exists return an array consisting of element -1.code.
Chapter 2 Solutions
EBK DATA STRUCTURES AND ALGORITHMS IN C
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