Jake Kulanko

• Username: 3★sonicdude47
• Country:  United States
• Student/Professional:Professional
• Organisation:Amazon
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 13

Current Ratings Graph Old Ratings Graph

1740 (-28)RatingProvisional
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Starters 173 (Rated upto < 2700)(2025-02-12 22:30:02)

Global Rank:   2031

Cheated in:   

Ratings System Update

(2025-02-12 22:30:02)

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1554? (-56)RatingProvisional
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November Challenge 2021 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   2191

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)

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Practice Paths (0)

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Contests (13)

October Lunchtime 2021 Division 3

Exactly N plus 1 Values, Alternating Work Days, Problem Category

November Challenge 2021 Division 3 (Rated)

Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper

February Cook-Off 2023 Division 3 (Rated)

Netflix, Permutation and Modulus, Bi_lindrome!, Take Not Less

Starters 77 Division 3 (Rated)

Spreading Charges, Tekken, Concat Palindrome, Three Numbers

Starters 78 Division 2 (Rated)

Bitwise Equation, Valid Expression

Starters 79 Division 2 (Rated)

Distinct Opposite Sums, One Stone or Two Stones, Love Squares Hate Cubes, Add smallest prime factor

Starters 80 Division 2 (Rated)

Prefix Permutation, Equal Elements

Starters 121 Division 2 (Rated)

Frequal, Split And Maximize, Caesar Cipher Lite, Anti Adjacent Swaps

Starters 122 Division 2 (Rated)

Arya In Grid, Man of the Match, Transformation Cost

Starters 168 (Rated)

Make Odd

Starters 171 (Rated)

Swish Game, White Wall, Volcanic Eruption

Starters 173 (Rated upto < 2700)

Cool Subsequences, Time Penalty

Total Problems Solved: 45