Krishan Nandan Goswami

• Username: 4★knox9
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology, Uttarakhand 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: 34

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Starters 78 Division 2 (Rated)(2023-02-22 23:00:02)

Global Rank:   221

Cheated in:   

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(2023-02-22 23:00:02)

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1589 (-16)RatingProvisional
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Starters 69 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1120

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 (34)

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess

October Challenge 2020 Division 2

Covid Run

December Challenge 2020 Division 2

Even Pair Sum, Vaccine Production, Vaccine Distribution

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Encoded String

February Challenge 2021 Division 3

Chef and Meetings, Maximise Function, Highest Divisor

March Challenge 2021 Division 3

Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait

April Challenge 2021 Division 3

Valid Pair, World Record, Strong Language

May Cook-Off 2021 Division 3

Marathon, Vaccine Drive

May Challenge 2021 Division 3 (Rated)

Golf, Solubility

June Challenge 2021 Division 3 (Rated)

Bella ciao, Summer Heat

September Challenge 2021 Division 3 (Rated)

Shuffling Parities, Airline Restrictions, Travel Pass

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 13 Division 3 (Rated)

Chef in Vaccination Queue, Maximum Light Up, The Preparations, Magical Doors

October Challenge 2021 Division 3 (Rated)

Three Boxes, Which Mixture

CodeChef Starters 16 Division 3 (Rated)

Professor And Directions, Chef And Salary Pay, Pass or Fail

October Lunchtime 2021 Division 3

Alternating Work Days, Chef and Water Car, Exactly N plus 1 Values, Fixed Points, Problem Category

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Equal Coins

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

CodeChef Starters 34 Division 2 (Rated)

Binary Mismatch, Average Array

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation

Starters 46 Division 3 (Rated)

Prime Xor, Sort the String, MATH1 Enrolment, Army Training

Starters 51 Division 2 (Rated)

Split N, Different Medians

Starters 65 Division 3 (Rated)

Nahaane Jaa, Candies, Binod, Hackerman

Starters 66 Division 2 (Rated)

Good Binary Strings, Palindrome by Splitting, Just Like Mob!

Starters 67 Division 2 (Rated)

Maximum Angriness, Expensive Steps , Counting Problem

Starters 69 Division 2 (Rated)

Akash and Dinner, Distinct Sequence

Starters 71 Division 3 (Rated)

Pet Store, Flip the Prefix, Snapchat, Perfect Trio, Maximizing LCS

Starters 73 Division 2 (Rated)

Find an integer, Consecutive Xor, Append for OR

Starters 74 Division 2 (Rated)

Distinct Values, Lcm hates Gcd, Minimal Inversions, Odd Even Binary String

Starters 76 Division 2 (Rated)

Make Array Odd, Zero String, Expected Value, Construct Array, Not Divisible

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Alice Potter And Dumbledore Army, Permutation and Modulus, Minimum Beauty

Starters 77 Division 2 (Rated)

Concat Palindrome, K Increment Palindrome, Three Numbers

Starters 78 Division 2 (Rated)

Bitwise Equation, Valid Expression, Solve More Problems!

Total Problems Solved: 161