How can I refactor this code to NOT include “int ans =” I’d like to keep the ternary operator. Since int ans is not actually the answer it makes no sense to keep it this way. What would be the correct way to use the ternary operator to change the left / right values? Answer The conditional o…
Tag: binary-search
Couldn’t implement binary search on linked list
i am a cse student who takes data structures course. Trying to implement binary search algorithm to my SinglyLinkedList class, somehow i’ve failed. Could you check it what’s wrong please ? The related method; I’ve debugged and it just enters the loops this side: else if(temp.getElement() >…
How to iterate from a given key in Java TreeMap
I have a TreeMap, and want to get a set of K smallest keys (entries) larger than a given value. I know we can use higherKey(givenValue) get the one key, but then how should I iterate from there? One possible way is to get a tailMap from the smallest key larger than the given value, but that’s an overkil…
How to use Collections.binarySearch for ArrayList<List> arr in java
I have an ArrayList<List<String>> and im trying to use the built-in binary search in the collection but I always come up with an error int index = Collections.binarySearch(arraylistdata, id); Where arraylistdata is my ArrayList of List<String>. Answer This works fine, but you need to known t…
Why bufferedReader is much efficient than Scanner class in java? [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 2 years ago. Improve this question Have …
First occurrence in a binary search
I’m tinkering with some code and I realized something I never knew. A normal binary search will return a random index in a data set for a key that occurs more than once. How can I modify this code below to return the first occurrence? Is this something people do? Answer Having found a matching value, yo…