Karan Singh

• Username: 2★karan49s
• Country:  India
• Student/Professional:Student
• Institution:University School of Information, Communication and Technology New Delhi
• CodeChef Pro Plan: No Active Plan. View Details

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

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No. of Contests Participated: 33

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February Cook-Off 2023 Division 3 (Rated)(2023-02-08 22:30:04)

Global Rank:   569

Cheated in:   

Ratings System Update

(2023-02-08 22:30:04)

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September Long 2022 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   3441

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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Learning Paths (0)

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Practice Paths (0)

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Contests (33)

October Lunchtime 2019 Division 2

Khaled in HIT

November Challenge 2019 Division 2

Hard Sequence, Weapon Value

November Cook-Off 2019 Division 2

Chef Diet

November Lunchtime 2019 Division 2

Compress the List

December Challenge 2019 Division 2

Plus Multiply, Easy Subsequence Selection, That Is My Score!

December Cook-Off 2019 Division 2

Change It

December Lunchtime 2019 Division 2

Stupid Machine, Check Algorithm

January Challenge 2020 Division 2

Equality, Breaking Bricks, Doraemon, Chef and Dynamo

February Challenge 2020 Division 2

No Change Required, The Theatre Problem, School of Geometry, Hard Cash

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

April Challenge 2020 Division 2

COVID Pandemic and Long Queue, Sell All the Cars

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

April Lunchtime 2020 Division 2

Another Birthday Present!, Chef in Fantasy League

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control

July Challenge 2020 Division 2

Ada King, Chef and Strings, Chef and Card Game, Missing a Point

August Challenge 2020 Division 2

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

September Challenge 2020 Division 2

A Problem on Sticks

July Lunchtime 2020 Division 2

Chef and Steps

RECode 12.0 (Rated for all)

Chef and String, Chef and Numbers

November Challenge 2020 Division 2

Ada and Dishes

June Challenge 2021 Division 3 (Rated)

Summer Heat, Bella ciao

August Challenge 2021 Division 3 (Rated)

Special Triplets, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

CodeChef Starters 8 Division 3 (Rated)

Javelin Qualification, Penalty Shots

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 3 (Rated)

Three Boxes, Which Mixture, Longest AND Subarray

December Challenge 2021 Division 3 (Rated)

Utkarsh and Placement tests

May Long One 2022 Division 3 (Rated)

Sugarcane Juice Business, The Attack of Queen

June Long Two 2022 Division 3 (Rated)

Count the ACs, Make all equal using Pairs, Complementary Strand in a DNA

July Long Two 2022 Division 3 (Rated)

Chef in his Office

September Long 2022 Division 3 (Rated)

Bob at the Bank, Speed Limit Test

Starters 74 Division 3 (Rated)

Chef And Babla, Odd Even Binary String

January Long 2023 Division 4 (Rated)

Asymmetric Swaps, Symmetric Swaps, Minimize the Maximum, Array Halves, Far from origin, Overspeeding Fine, Negative Product

Starters 76 Division 3 (Rated)

Make Array Odd, Not Divisible, 400M Race, Construct Array, Expected Value, Zero String, Redistributing Chocolates

February Cook-Off 2023 Division 3 (Rated)

Take Not Less, Bi_lindrome!, Permutation and Modulus, Minimum Beauty , Netflix

Total Problems Solved: 132