Problems

# Status Problem Level Completes Likes
1

Plus one to number represented by an array

Medium % 1
2

Find the Nth-term in a given arithmetic progression

Beginner % 0
3

Convert a Decimal number to its representation

Beginner % 1
4

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

Beginner % 1
5

Add digits until the number becomes a single digit

Beginner % 1
6

Calculate tax on income as per given tax brackets.

Beginner % 0
7

Valid Pickup and Delivery options

Hard % 0
8

The largest number can be formed from the given number

Beginner % 0
9

Construct the Largest number from the given digits

Beginner % 1
10

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

Medium % 0
11

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

Medium % 0
12

Hamming Distance between two given integers

Beginner % 0
13

Find all the Armstrong numbers in the given range

Beginner % 0
14

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

Medium % 0
15

Check if Number is divisible by its digits

Beginner % 0
16

Check if the given number is Armstrong number or not

Beginner % 0
17

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Medium % 0
18

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

Medium % 0
19

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

Medium % 0
20

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

Beginner % 0
21

Smallest Number after Removing K digits

Hard % 0
22

Find the maximum number present in a String

Beginner % 0
23

Convert Prefix to Postfix Expression

Medium % 0
24

Convert Roman Number to Integer

Beginner % 0
25

Convert Postfix to Prefix Expression

Medium % 0
26

Convert Integer to Roman

Medium % 0
27

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

Medium % 0
28

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

Medium % 0
29

Convert Postfix to Infix Expression

Medium % 0
30

Collatz Conjecture - Steps to transform Number to 1

Beginner % 0
31

String to Integer (AtoI - ASCII to Integer)

Beginner % 0
32

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

Beginner % 0
33

Monotone Increasing Digits

Medium % 0
34

Convert Infix to Prefix Expression

Medium % 0
35

Convert Infix to Postfix Expression

Medium % 0

Plus one to number represented by an array

Find the Nth-term in a given arithmetic progression

Convert a Decimal number to its representation

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

Add digits until the number 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