# Status Problem video Level Completes Likes
544

Counting the Largest Number Groups by Digit Sum

Medium % 2
543

Adding One to a Number Represented by an Array

Medium % 1
539

Find the Nth-term in a given arithmetic progression

Beginner % 1
531

Convert a Decimal number to its binary representation

Beginner % 1
527

In a number, add digits until it becomes a single digit

Beginner % 1
502

Calculate tax on income as per given tax brackets.

Beginner % 0
501

Valid Pickup and Delivery options

Hard % 0
498

The largest number can be formed from the given number

Beginner % 0
485

Construct the Largest number from the given digits

Beginner % 1
448

Numbers with prime set bits in a given range using Sieve of Eratosthenes Algorithm

Medium % 0
436

Find all unique combinations of exact K numbers (from 1 to 9 ) with sum to N

Medium % 0
435

Hamming Distance between two given integers

Beginner % 1
429

Find all the Armstrong numbers in the given range

Beginner % 0
428

Collatz Conjecture - Maximum Steps takes to transform (1, N) to 1.

Medium % 0
412

Check if Number is divisible by its digits

Beginner % 0
411

Check if the given number is Armstrong number or not

Beginner % 0
410

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Medium % 0
406

Evaluation of Postfix Expressions (Polish Postfix notation) | Set 2

Medium % 0
405

Evaluation of Postfix Expressions (Polish Postfix notation) | Set 1

Medium % 0
404

Find all the numbers in the range which has prime set bits.

Beginner % 0
398

Smallest Number after Removing K digits

Hard % 0
394

Find the maximum number present in a String

Beginner % 0
390

Convert Prefix to Postfix Expression

Medium % 0
389

Convert Roman Number to Integer

Beginner % 0
387

Convert Postfix to Prefix Expression

Medium % 0
386

Convert Integer to Roman

Medium % 0
385

String to Integer (AtoI - ASCII to Integer) - Recursive Solution

Medium % 0
379

Sieve of Eratosthenes - Find all Prime Numbers less than equal to N | Set 2

Medium % 0
377

Convert Postfix to Infix Expression

Medium % 0
376

Collatz Conjecture - Steps to transform Number to 1

Beginner % 0
375

String to Integer (AtoI - ASCII to Integer)

Beginner % 1
374

Find all Prime Numbers less than equal to N | Set 1

Beginner % 0
372

Monotone Increasing Digits

Medium % 1
371

Convert Infix to Prefix Expression

Medium % 0
365

Convert Infix to Postfix Expression

Medium % 0

Counting the Largest Number Groups by Digit Sum

Adding One to a Number Represented by an Array

Find the Nth-term in a given arithmetic progression

Convert a Decimal number to its binary representation

In a number, add digits until it becomes a single digit

Calculate tax on income as per given tax brackets.

Valid Pickup and Delivery options

The largest number can be formed from the given number

Construct the Largest number from the given digits

Numbers with prime set bits in a given range using Sieve of Eratosthenes Algorithm

Find all unique combinations of exact K numbers (from 1 to 9 ) with sum to N

Hamming Distance between two given integers

Find all the Armstrong numbers in the given range

Collatz Conjecture - Maximum Steps takes to transform (1, N) to 1.

Check if Number is divisible by its digits

Check if the given number is Armstrong number or not

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Evaluation of Postfix Expressions (Polish Postfix notation) | Set 2

Evaluation of Postfix Expressions (Polish Postfix notation) | Set 1

Find all the numbers in the range which has prime set bits.

Smallest Number after Removing K digits

Find the maximum number present in a String

Convert Prefix to Postfix Expression

Convert Roman Number to Integer

Convert Postfix to Prefix Expression

Convert Integer to Roman

String to Integer (AtoI - ASCII to Integer) - Recursive Solution

Sieve of Eratosthenes - Find all Prime Numbers less than equal to N | Set 2

Convert Postfix to Infix Expression

Collatz Conjecture - Steps to transform Number to 1

String to Integer (AtoI - ASCII to Integer)

Find all Prime Numbers less than equal to N | Set 1

Monotone Increasing Digits

Convert Infix to Prefix Expression

Convert Infix to Postfix Expression