I've been trying to write a program, in which I want to use the intersection of two HashSets. Therefore I wrote the following code (for test purposes) ...

This is more of an intellectual exercise, but are there battle-tested C++ libraries implementing hash map/set (std::unordered_map, std::unordered_set) ...

I'm working with integer sequences with non-repeating elements, for some reasons I am tring to remove duplicates by building a hashset. Is there or ...

I am trying to generate a HashSet containing unique Employee instances. Uniqueness should be established based on the object properties. The problem ...

I have two java HashSets, as below: HashSet<Integer> H1 = new HashSet<>(); HashSet<Vector> H2 = new HashSet<>(); As the num ...

Im quite new to programming so i apologise if this is a stupid question.. how do I remove an object from a hashset? I've tried to use .remove() but im ...

I'm trying to return a Vector from a function. This happens in a loop and I need the values to exist outside of the loop. Since I perform the return m ...

Objective : Trying to replicate the behaviour of compareEmployeesMap in compareEmployees in a simpler way. However, I'm getting different response wit ...

I have a class called Order. One of the field is id, which is just a unique identifier for an Order object. So I do something simple to get those Ord ...

Bloomfilters are often less space efficient than hashsets if the key cardinality is small. Say we have 20bit keys and a set size of 1024 (10bit). A h ...

I am currently trying to get a List with unique values. Technically, it should be really simple, and the obvious choice would be a HashSet. However, ...

Good afternoon. I am stuck in helping my son in a Java program. Hope someone can help. Here is the problem. In Main i have, amoung other.... the rea ...

I want to show in a second column of my datagridview the index of the deleted rows. This is the result if the HashSets are unequal, I want to add a ...

I'm working on a problem that asks me to "Write a method that returns all of the subsets of the set formed by the integers 1 to N where N is passed to ...

I have two hashsets that I want to except to get the distinct data: My problem is when I insert the container into the datageid, this is my result: ...

UPDATED If I do hs.Count I get Count as 2. Is there a way I can stop duplicate lists from being added? Solution needs to have O(1) complexity. Or ...

The Java HashSet add method combines a contains and an add method as it returns true or false if the element is already present in the collection. Is ...

I have 81K records of Long object and I am trying to store it in HashSet. My code snippet looks like this: While compiling this is giving me StackO ...

Im making a class called Book which contains the books name and price. If i insert those data into a HashSet, how would be i able to check if a book e ...

Also for the Hashset has only lowerletter case. Is this O(1)/ or O(N) Not the performance. Eg: A leetcode problem Map<Character,Integer>store ...