David Harmeyer

• Username: 5★secondthread
• Country:  United States
• Student/Professional:Professional
• Organisation:Facebook
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 6

Current Ratings Graph Old Ratings Graph

2102 (+206)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2022 Division 2 (Rated)(2022-07-17 23:30:02)

Global Rank:   4

Cheated in:   

Ratings System Update

(2022-07-17 23:30:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

2102 (-25)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2022 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   4

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

None

Practice Paths (0)

None

Contests (6)

August Long Challenge 2017

Chef and Mover, Chef and Rainbow Array

June Lunchtime 2017

Maximum Unique Segment, Two Numbers

December Challenge 2019 Division 2

Plus Multiply, Easy Subsequence Selection, That Is My Score!

SnackDown 2021 - Online Qualifiers

Lucky Number

May Cook-Off 2022 Division 2 (Rated)

Split Powers Of 2, Different Subarrays Rearrange, Doubled Distances, Triple Inversions

Starters 37 Division 2 (Rated)

Remove Balance, Too Mean, Maximum OR Minimum, Infernos, Beat the Average, Dazzling Even-Odd Challenge

July Lunchtime 2022 Division 2 (Rated)

Easy Pronunciation, Binary String Happiness, Yet Another Palindrome Making Problem, Consecutive XOR, Maximum Median Matching, Largest Family

Total Problems Solved: 26