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• Username: 4★coder_b
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology Patna Bihar, India
• 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: 18

Current Ratings Graph Old Ratings Graph

1831 (+85)RatingProvisional
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Infinity 2k21 Division 2 (Rated)(2021-12-22 23:00:02)

Global Rank:   41

Cheated in:   

Ratings System Update

(2021-12-22 23:00:02)

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1831 (-216)RatingProvisional
Rating i Provisional Rating, click to know more

Infinity 2k21 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   41

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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Contests (18)

December Challenge 2020 Division 2

Hail XOR

April Challenge 2021 Division 3

Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip

April Cook-Off 2021 Division 3

OR of ANDs

May Cook-Off 2021 Division 3

The Last Problem

September Cook-Off 2021 Division 3

Zebra Crossing, Fake Swaps

CodeChef Starters 11 Division 3 (Rated)

Positive Spewing, Obtain the Sum, The Grid Fill Problem

CodeChef Starters 12 Division 3 (Rated)

Good Weather, Make it Divisible, Maximum Points

October Challenge 2021 Division 3 (Rated)

Digit Removal

CodeChef Starters 16 Division 3 (Rated)

Pass or Fail, Chef and Magical Steps, Professor And Directions, Chef And Salary Pay

October Cook-Off 2021 Division 2

Can You Reach The End, Odd Sum, 01 Subsequence

October Lunchtime 2021 Division 2

Chef and Water Car, Exactly N plus 1 Values

November Challenge 2021 Division 2 (Unrated)

Xor Equation

CodeChef Starters 19 Division 2 (Rated)

Distinct Elements, The Alternating Sum, Indivisible Permutation

CodeChef Starters 20 Division 2 (Unrated)

Stable Sequence, Weird Values, Brutal-Xors

December Cook-Off 2021 Division 2

Median Minimization, Musical Chairs

Infinity 2k21 Division 2 (Rated)

Marbles, Tug of War, Dalgona Treat

CodeChef Starters 24 Division 1 (Unrated)

Anti Palindrome, Divisors and Reciprocals

Total Problems Solved: 65