# Status Problem video Level Completes Likes
155

Find the Kth Smallest/Largest Element in an Array Using Heap

Beginner % 0
146

Dynamic Programming - Stairs Climbing Puzzle

Beginner % 1
141

Find the Single Occurrence Element in an Array (Odd One Out)

Beginner % 1
140

Rearrange Array Elements (A[i] = i) | In-place Approach

Medium % 0
139

Find Missing Numbers in Sequences - XOR Method

Beginner % 1
138

Find the Maximum Value in a Binary Tree

Beginner % 0
132

Find the Deepest Node in a Binary Tree

Medium % 1
125

Find the Increasing Triplet Sub-sequence in an array

Medium % 0
120

Convert Decimal to Irreducible Fraction (Simplified Form)

Beginner % 0
112

Generate All n-Bit Binary Strings

Medium % 1
111

Find Unique Number in Array with Duplicates (Except One)

Beginner % 1
103

Delete X Nodes After Y Nodes In a Linked List

Beginner % 0
92

Check if Array Contains All Elements Of Some Given Range

Medium % 0
91

Check if Array is Consecutive Integers

Beginner % 0
90

Find Subarray with Sum Equal to a Target Value

Medium % 0
87

Find Intersection of Two Sorted Arrays

Beginner % 0
41

Sorted Array to Binary Search Tree of Minimal Height

Medium % 1
29

Delete a Node in the Middle of a Linked List Without Access to Head Node

Beginner % 0
28

Determine the Nth Node from the Tail in a Linked List

Beginner % 0
26

Check if one string is Rotation of another string

Beginner % 1
20

Reverse a Linked List

Beginner % 0
12

Efficient Methods to Find Pairs with Sum K in an Array

Beginner % 0
7

Determine If a String is Palindrome

Beginner % 0
5

Find two Missing Numbers in a Sequence of Consecutive Numbers

Beginner % 0

Find the Kth Smallest/Largest Element in an Array Using Heap

Dynamic Programming - Stairs Climbing Puzzle

Find the Single Occurrence Element in an Array (Odd One Out)

Rearrange Array Elements (A[i] = i) | In-place Approach

Find Missing Numbers in Sequences - XOR Method

Find the Maximum Value in a Binary Tree

Find the Deepest Node in a Binary Tree

Find the Increasing Triplet Sub-sequence in an array

Convert Decimal to Irreducible Fraction (Simplified Form)

Generate All n-Bit Binary Strings

Find Unique Number in Array with Duplicates (Except One)

Delete X Nodes After Y Nodes In a Linked List

Check if Array Contains All Elements Of Some Given Range

Check if Array is Consecutive Integers

Find Subarray with Sum Equal to a Target Value

Find Intersection of Two Sorted Arrays

Sorted Array to Binary Search Tree of Minimal Height

Delete a Node in the Middle of a Linked List Without Access to Head Node

Determine the Nth Node from the Tail in a Linked List

Check if one string is Rotation of another string

Reverse a Linked List

Efficient Methods to Find Pairs with Sum K in an Array

Determine If a String is Palindrome

Find two Missing Numbers in a Sequence of Consecutive Numbers