Number Manipulation I

Curated by : goc3

Average Problem Difficulty:

Manipulate numbers from one form to another.

Number Manipulation I Master

+50 points

Problem Title	Likes	Solvers
Problem 138. Number of 1s in the Binary Representation of a Number Created by: @bmtran (Bryant Tran) Tags binary, base, count	4	455
Problem 302. Convert Roman to Arabic Numerals Created by: Alan Chalker Tags roman numerals	2	107
Problem 324. 7 segment LED display Created by: Alan Chalker Tags number representations	7	270
Problem 2126. Split bread like the Pharaohs - Egyptian fractions and greedy algorithm Created by: Muthu Annamalai Tags rats, egyptian fraction	3	78
Problem 145. Increment a number, given its digits Created by: the cyclist Tags digit increment	13	659
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	4	237
Problem 227. Math with Roman Numerals Created by: eric landiech Tags encoding	1	77
Problem 602. Make a simplified barcode Created by: Doug Hull Tags ml101	3	162
Problem 603. Decode a simplified barcode Created by: Doug Hull Tags ml101	0	119
Problem 1748. Ripping numbers apart! Created by: Chris E. Tags matrix manipulation, string manipulation	3	104
Problem 1871. Numbers in extended form Created by: James Tags place value, extended form, third grade math	7	102
Problem 1879. Converting numbers back from extended form Created by: James Tags place value, extended form, third grade math	3	118
Problem 2040. Additive persistence Created by: Jean-Marie Sainthillier Tags recursion, persistence	6	172
Problem 2120. Rounding off numbers to n decimals Created by: Marcel Tags basic, easy, matlab	20	4789
Problem 2133. Reverse Calculator Created by: Vivek Tags reverse order number	2	190

Recent Group Finishers58

Recent Activity

	Mohamed Elshami submitted Solution 14577244 to Problem 2120. Rounding off numbers to n decimals on 17 Mar 2025 at 9:39
	Paul Bower submitted Solution 14576593 to Problem 172. Test if a Number is a Palindrome without using any String Operations on 15 Mar 2025 at 20:42
	Peijin submitted Solution 14573875 to Problem 2120. Rounding off numbers to n decimals on 12 Mar 2025 at 11:50
	BQ Qian submitted Solution 14570519 to Problem 145. Increment a number, given its digits on 8 Mar 2025 at 11:54
	Alexander Ross submitted Solution 14570410 to Problem 1933. That's some divisor you've got there... on 8 Mar 2025 at 5:05

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