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• Username: 3★serenity69
• Country:  Bangladesh
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 19

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1647 (-40)RatingProvisional
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Starters 89 Division 2 (Rated)(2023-05-10 22:00:02)

Global Rank:   1314

Cheated in:   

Ratings System Update

(2023-05-10 22:00:02)

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1723 (-10)RatingProvisional
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Starters 55 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1006

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

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Contests (19)

Starters 37 Division 4 (Rated)

Roller Coaster, The Mango Truck, Maximum OR Minimum, Infernos, Beat the Average, Laptop Recommendation

May Long One 2022 Division 4 (Rated)

Mystical Numbers, Pushpa , Sugarcane Juice Business, The Attack of Queen, Football Cup, Miami GP

Starters 38 Division 4 (Rated)

Chef gives Party, Get Subscription, Good Pairs, Dominant Army, Circular Track

May Lunchtime 2022 Division 4 (Rated)

Bucket and Water Flow , Problems in your to-do list, How many unattempted problems, Maximum Pairwise Modular Sum, Apples and Oranges

Starters 39 Division 3 (Rated)

Compress the Video, Closest Vowels, Recent contest problems, Even Subarray XOR, A or B

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation

Starters 41 Division 3 (Rated)

Determine the Winner, Equal Integers, Path Parity

June Cook-Off 2022 Division 3 (Rated)

Break the Stick, First and Last

Starters 42 Division 3 (Rated)

Minimum or Maximum, Divisible by 3, How Many Maximums, Minimum number of Flips

Starters 44 Division 3 (Rated)

The Attack of Knight, Jogging, Dense Bracket Sequence

Starters 43 Division 3 (Rated)

DNA Storage, Distinct Palindrome, Joining Date

Starters 46 Division 2 (Rated)

Prime Xor, Sort the String

Starters 47 Division 2 (Rated)

Copy and Push Back, End Sorted, Similar Heights

Starters 49 Division 2 (Rated)

Split The String, High Frequency, Monks, Valid Minimum

August Lunchtime 2022 Division 2 (Rated)

Easy Permutation, Array Equality

Starters 53 Division 2 (Rated)

Black&White Ring Game, Make A and B equal, Queen Blocks

Starters 55 Division 2 (Rated)

Balls and Boxes, Mean and Median, OR Tuples

Starters 84 Division 2 (Rated)

Digit Operation

Starters 89 Division 2 (Rated)

Plus 2 or Minus 1

Total Problems Solved: 72