# Status Problem video Level Completes Likes
430

Longest substring with at most K unique characters

Medium % 2
388

Sort a given stack - Using Temporary Stack

Medium % 0
367

Sum of all Unique elements in a given array

Beginner % 0
349

Selection Sort

Beginner % 0
338

Find Number of reverse pairs in an array

Hard % 1
332

Insertion Sort

Beginner % 0
328

Heap Sort

Medium % 0
321

Bubble Sort and Optimized Bubble Sort

Beginner % 1
150

Sort Names by their Last Names.

Beginner % 0
143

Merge K Sorted Arrays

Hard % 0
114

Counting Sort

Medium % 0
110

Sort 3 Integers without using if condition OR use only Max() function.

Beginner % 0
102

Merge Sort in a Linked list

Medium % 0
57

Sort an Given Array in the order defined by another array

Medium % 0
56

Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order.

Medium % 0
12

Efficient Methods to Find Pairs with Sum K in an Array

Beginner % 0
10

Quick Sort Implementation

Medium % 0
2

Merge Sort - Updated - Most Efficient ways to Implement

Medium % 1

Longest substring with at most K unique characters

Sort a given stack - Using Temporary Stack

Sum of all Unique elements in a given array

Selection Sort

Find Number of reverse pairs in an array

Insertion Sort

Heap Sort

Bubble Sort and Optimized Bubble Sort

Sort Names by their Last Names.

Merge K Sorted Arrays

Counting Sort

Sort 3 Integers without using if condition OR use only Max() function.

Merge Sort in a Linked list

Sort an Given Array in the order defined by another array

Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order.

Efficient Methods to Find Pairs with Sum K in an Array

Quick Sort Implementation

Merge Sort - Updated - Most Efficient ways to Implement