# Problems

1 – 15 of 15
 Problem Title Likes Solvers Difficulty

#### Problem 2133. Reverse Calculator

Created by: Vivek

2

165

#### Problem 2120. Rounding off numbers to n decimals

Created by: Marcel

Tags basic, easy, matlab

16

3086

#### Problem 1879. Converting numbers back from extended form

Created by: James

3

103

#### Problem 2040. Additive persistence

Created by: Jean-Marie Sainthillier

6

152

#### Problem 138. Number of 1s in the Binary Representation of a Number

Created by: @bmtran (Bryant Tran)

Tags binary, base, count

3

404

#### Problem 324. 7 segment LED display

Created by: Alan Chalker

7

237

#### Problem 145. Increment a number, given its digits

Created by: the cyclist

13

614

#### Problem 602. Make a simplified barcode

Created by: Doug Hull

Tags ml101

3

153

#### Problem 603. Decode a simplified barcode

Created by: Doug Hull

Tags ml101

0

111

#### Problem 1871. Numbers in extended form

Created by: James

7

89

#### Problem 172. Test if a Number is a Palindrome without using any String Operations

Created by: @bmtran (Bryant Tran)

4

210

#### Problem 1748. Ripping numbers apart!

Created by: Chris E.

3

92

#### Problem 302. Convert Roman to Arabic Numerals

Created by: Alan Chalker

2

88

#### Problem 2126. Split bread like the Pharaohs - Egyptian fractions and greedy algorithm

Created by: Muthu Annamalai

3

61

#### Problem 227. Math with Roman Numerals

Created by: eric landiech

Tags encoding

1

67

1 – 15 of 15