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• Username: 4★pichuskywars
• Country:  Vietnam
• Student/Professional:Student
• Institution:Elementary school with kindergarten Habovka Slovakia
• 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: 14

Current Ratings Graph Old Ratings Graph

1957 (+61)RatingProvisional
Rating i Provisional Rating, click to know more

August Lunchtime 2021 Division 1(2021-08-28 22:30:00)

Global Rank:   47

Cheated in:   

Ratings System Update

(2021-08-28 22:30:00)

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?

1957 (-308)RatingProvisional
Rating i Provisional Rating, click to know more

August Lunchtime 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   47

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 (14)

March Challenge 2019 Division 2

Chef and a Beautiful Digit, Chef and Number Game

April Challenge 2019 Division 2

Friend or Girlfriend, Maximum Remaining

June Challenge 2019 Division 2

Road Signs, Chef and Proxy, Guddu on a Date, Sum and GCD

July Challenge 2019 Division 2

Chef and Mean

October Challenge 2019 Division 2

Operations on a Matrix, Phone Prices, Array Modification, Chef and Maximum Star Value, Missing Number

November Challenge 2019 Division 2

Physical Exercise, Hard Sequence, Smallest Beautiful Number, From Zero to Infinity, Weapon Value, Chef and Minimum Colouring

December Challenge 2019 Division 1

Binary XOR, That Is My Score!, Addition

January Challenge 2020 Division 2

Breaking Bricks, Chefina and Prefix Suffix Sums, Doraemon, Chef and Dynamo, Equality

January Lunchtime 2020 Division 1

Under the Tunnels

July Challenge 2020 Division 1

Chefina and Swaps, Missing a Point, Doctor Chef

September Challenge 2020 Division 1

Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2

February Challenge 2021 Division 2

Another Tree with Number Theory, Maximise Function, XOR Sums, Multiple Games, Prime Game, Team Name, Frog Sort

March Lunchtime 2021 Division 1

Uniform, Lunchtime

August Lunchtime 2021 Division 1

Bunny Hops, Just a Graph, Longest Spanning Substrings, Chef and Deque

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

Total Problems Solved: 65