Batrr

• Username: 7★batrr
• Country:  Kazakhstan
• Student/Professional:Student
• Institution:Harbour.Space University Barcelona, Spain
• 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: 15

Current Ratings Graph Old Ratings Graph

2538 (+41)RatingProvisional
Rating i Provisional Rating, click to know more

February Cook-Off 2023 Division 1 (Rated)(2023-02-08 22:30:00)

Global Rank:   27

Cheated in:   

Ratings System Update

(2023-02-08 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?

2497 (-119)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2022 Division 1 (Rated)(2022-12-20 00:00:00)

Global Rank:   3

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)

None

Practice Paths (0)

None

Contests (15)

September Mega Cook-Off 2018 Division 1

Make a Permutation, Ghayeeth vs Siroj, OneTwo

May Challenge 2018 Division 2

S-T Mincut, Mighty Friend, Change the Signs, Edges in Spanning Trees, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

June Challenge 2018 Division 2

Naive Chef

July Challenge 2018 Division 2

No Strings Attached, Strike or Spare, Magic Set, No Minimum No Maximum, Reach Equilibrium, Gears

October Challenge 2018 Division 1

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

January Lunchtime 2019 Division 1

Mouse Meets Cheese, Rooks, Wanderer, Distances

March Challenge 2019 Division 1

Chef and Soccer, Cheating on Queue, Perfect Tree Problem, Treasure Hunt, Yet Again a Subarray Problem, Matchable Permutations

April Challenge 2019 Division 1

Offer for Chef, Subtree Removal, Playing with Numbers, Kira Loves Palindromes, Mininum XOR over Tree

November Challenge 2019 Division 1

Physical Exercise, Smallest Beautiful Number, Single Point of Failure

December Lunchtime 2021 Division 1

In-tree-active Node Coloring, Optimal Sorting, Romantic Reversals, Sleep Technique

January Lunchtime 2022 Division 1

Permutation XOR Sum, Divisible Distances

March Lunchtime 2022 Division 1

Separate Them All, Adjacency Love, Sussy Rooks, Mathology, Winter

June Cook-Off 2022 Division 1 (Rated)

Permutation Segments, Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum

July Lunchtime 2022 Division 1 (Rated)

Tree Interval Queries, Largest Family, Consecutive XOR, Binary String Happiness, Tree Retrieval, Inversions Retrieval

February Cook-Off 2023 Division 1 (Rated)

Take Not Less, Alice Potter and OWL, Alice Potter And Dumbledore Army

Total Problems Solved: 76