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Top 20 Problems on Dynamic programming

Top 10 Problems on Backtracking

Top 20 Problems on Graph

Top 25 Problems on Trees

All Problems

# Status Problem Level Completes Likes
526

Inorder Successor in Binary Tree

Medium % 0
527

Level Order Traversal, Print each level in separate line.

Medium % 0
528

Add two numbers represented by a linked list, Numbers are Stored in FORWARD order

Medium % 0
529

Add two numbers represented by a linked list, Numbers are Stored in REVERSE order

Medium % 0
530

Reverse a Linked List - Part 2

Medium % 0
531

String Compression using count of repeated characters - Run Length Encoding

Beginner % 0
532

Replace all spaces in a String with '%20'

Medium % 0
534

Singly Linked List Implementation

Beginner % 0
535

Find The Longest Sequence Of Prefix Shared By All The Words In A String

Medium % 0
537

Find a pair of numbers from an array whose sum equals k

Beginner % 0
538

Check If String has All Unique Characters

Beginner % 0
539

Quick Sort Implementation

Medium % 0
540

Find an Element in 2 dimensional sorted array

Medium % 0
541

Find Whether Given String is palindrome or Not.

Beginner % 0
542

Find a peak element in a Given Array

Beginner % 0
543

Find two Missing Numbers in a Sequence of Consecutive Numbers

Beginner % 0
544

Find a Missing Number From a Sequence of Consecutive Numbers

Beginner % 0
545

Hash Table Implementation

Beginner % 0

Inorder Successor in Binary Tree

Level Order Traversal, Print each level in separate line.

Add two numbers represented by a linked list, Numbers are Stored in FORWARD order

Add two numbers represented by a linked list, Numbers are Stored in REVERSE order

Reverse a Linked List - Part 2

String Compression using count of repeated characters - Run Length Encoding

Replace all spaces in a String with '%20'

Singly Linked List Implementation

Find The Longest Sequence Of Prefix Shared By All The Words In A String

Find a pair of numbers from an array whose sum equals k

Check If String has All Unique Characters

Quick Sort Implementation

Find an Element in 2 dimensional sorted array

Find Whether Given String is palindrome or Not.

Find a peak element in a Given Array

Find two Missing Numbers in a Sequence of Consecutive Numbers

Find a Missing Number From a Sequence of Consecutive Numbers

Hash Table Implementation