Sergei Romanov

• Username: 4★sleepingonee
• Country:  Germany
• Student/Professional:Professional
• Organisation:
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 14

Current Ratings Graph Old Ratings Graph

1918 (-17)RatingProvisional
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Starters 201 (Rated)(2025-08-27 22:00:02)

Global Rank:   711

Cheated in:   

Ratings System Update

(2025-08-27 22:00:02)

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None(None)

Global Rank:   0

Cheated in:   

Ratings System Update

(None)

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Contests (14)

Starters 99 Division 4 (Rated)

Endless Appetizers, Puzzle Hunt, Exclusion-Inclusion, Card Swipe

Starters 100 Division 3 (Rated)

Stamps 100, Trade Surplus, Chocolate Distribution, Ant

Starters 101 Division 2 (Rated)

Warrior Chef, Lockpicking Chef

Starters 102 Division 2 (Rated)

Array Sum, Bit Play

Starters 103 Division 2 (Rated)

Chandelier, Unique xor, Divisible By 8, Dice Number

Starters 104 Division 2 (Rated)

Maximise Sum, GCD and LCM

Starters 105 Division 2 (Rated)

Take it Easy, Dull Operation, Wishcraft

Starters 124 Division 2 (Rated)

Make It One, Swap and Unite, Binary Parity, Table Strength

Starters 132 Division 2 (Rated)

ALIEN-OR, Optimal Flip, Change Please, ICE CREAM, Prime Query, GAME 11

Starters 150 (Rated)

Equal Pairs (Hard), Replacing Game, Find Multiset State, Equal Pairs (Easy)

Starters 154 (Rated)

GCD and XOR, Add 1 or 2 Game

Starters 166 (Rated)

Distinct Power, Divisors Array (Easy Version), Costly Permutations, Chefland Library

Starters 171 (Rated)

Swish Game, White Wall, Volcanic Eruption

Starters 201 (Rated)

Compare and Connect, Huge Grid (Easy Version), Mixing Liquids, Mark Points

Total Problems Solved: 59