Kelvin Valensius

• Username: 3★darkstallion
• Country:  Singapore
• Student/Professional:Professional
• Organisation:Shopee
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 9

Current Ratings Graph Old Ratings Graph

1704 (+11)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2019 Division 2(2019-05-13 15:03:00)

Global Rank:   1479

Cheated in:   

Ratings System Update

(2019-05-13 15:03:00)

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?

1704 (-18)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   1479

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 (9)

February Challenge 2014

Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make Him Happy

December Challenge 2014

Alok-nath and His Sanskars, XOR with Subset, Chef and Apple Trees

January Challenge 2015

Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms

February Challenge 2015

Chef and Strange Formula, Chef and Equality, Let us play with rank list, Chef and Chain

May Challenge 2015

Chef and new recipe

December Challenge 2017

Chef And his Cake, Penalty Shoot-out

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

May Challenge 2019 Division 2

Matches, Reduce to One

Total Problems Solved: 25