Problems

1 – 15 of 15

Problem Title Likes Solvers Difficulty

Problem 2133. Reverse Calculator

Created by: Vivek

Tags reverse order number

165

Problem 2120. Rounding off numbers to n decimals

Created by: Marcel

Tags basic, easy, matlab

3086

Problem 1879. Converting numbers back from extended form

Created by: James

Tags place value, extended form, third grade math

103

Problem 2040. Additive persistence

Created by: Jean-Marie Sainthillier

Tags recursion, persistence

152

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

Created by: @bmtran (Bryant Tran)

Tags binary, base, count

404

Problem 324. 7 segment LED display

Created by: Alan Chalker

Tags number representations

237

Problem 145. Increment a number, given its digits

Created by: the cyclist

Tags digit increment

614

Problem 602. Make a simplified barcode

Created by: Doug Hull

Tags ml101

153

Problem 603. Decode a simplified barcode

Created by: Doug Hull

Tags ml101

111

Problem 1871. Numbers in extended form

Created by: James

Tags place value, extended form, third grade math

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

Created by: @bmtran (Bryant Tran)

Tags palindrome, number, powers of 10

210

Problem 1748. Ripping numbers apart!

Created by: Chris E.

Tags matrix manipulation, string manipulation

Problem 302. Convert Roman to Arabic Numerals

Created by: Alan Chalker

Tags roman numerals

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

Created by: Muthu Annamalai

Tags rats, egyptian fraction

Problem 227. Math with Roman Numerals

Created by: eric landiech

Tags encoding