ibsti

• Username: 4★ibsti
• Country:  India
• Student/Professional:Other
• 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

1981 (-63)RatingProvisional
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April Challenge 2020 Division 2(2020-04-13 17:30:02)

Global Rank:   5171

Cheated in:   

Ratings System Update

(2020-04-13 17:30:02)

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1981 (+232)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   5171

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)

December Cook-Off 2017

Beautiful Array, Football Match, Minimum SubArray

December Lunchtime 2017

Days in Month, Strange Function

January Cook-Off 2018

Multiple of 3, Survive in ChocoLand

January Lunchtime 2018

Chef and Game with Sequence, Chef and Escaping from the Labyrinth

August Challenge 2018 Division 1

Princess and Dragons, Lonely Cycles, Interactive Matrix, Modular GCD, Coordinate Compression

September Challenge 2018 Division 1

AND Square Subsegments, Table Game, Bad Shuffle

November Challenge 2018 Division 1

Appy Loves One, Good Median, Magician versus Chef 2

October Challenge 2018 Division 1

Beautiful Bricks, Coprime Components, Chef and Surprise Chessboard, Appy and Balloons , Minimize Digitsum

October Lunchtime 2018 Division 1

Coloring the Grid, Weird Question, Niceness of the Arrays

January Challenge 2019 Division 1

Yet Another Problem About Sequences, Different Neighbours, Distinct Pairs

February Challenge 2019 Division 1

Chef and Secret Ingredients, Maximize the Tax, Art of Balance, Yet Another Tree Problem, Xor Decomposition, Guess It Right, Manhattan Rectangle

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue

Total Problems Solved: 71