Prem Kumar

• Username: 3★prem1803
• Country:  India
• 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: 37

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1624 (+16)RatingProvisional
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Starters 74 Division 2 (Rated)(2023-01-18 23:00:02)

Global Rank:   1090

Cheated in:   

Ratings System Update

(2023-01-18 23:00:02)

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1608 (+3)RatingProvisional
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July Lunchtime 2022 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   225

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 (37)

December Challenge 2019 Division 2

That Is My Score!

February Cook-Off 2020 Division 2

Tax Slabs

May Cook-Off 2020 Division 2

Chef and Recipe

May Lunchtime 2020 Division 2

Weird Walk, Lost Weekends

June Challenge 2020 Division 2

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

July Challenge 2020 Division 2

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

August Challenge 2020 Division 2

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

September Challenge 2020 Division 2

A Problem on Sticks, Find XOR, Ada Matrix, Coronavirus Spread 2

July Lunchtime 2020 Division 2

Chef and Steps

June Lunchtime 2020 Division 2

Chef and Demonetisation

December Cook-Off 2020 Division 2

Self-Destructing Strings, Catch the Thief, Minimum Attendance Requirement

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences, One Zero Swaps

January Lunchtime 2021 Division 2 (Unrated)

Even Differences

October Cook-Off 2020 Division 2

Split the Str Ing, Path-etic Sums, Decreasing Srrnmieeda

October Lunchtime 2020 Division 2

AND Plus OR

November Lunchtime 2020 Division 2

Gasoline Introduction

September Cook-Off 2020 Division 2

Bowling Strategy

September Lunchtime 2020 Division 2

GCD operations, Watermelon

InfInITy 2k20 Division 2 (Rated)

The One Who Knocks!

UWCOI 2021 (Rated for all)

Hidden Numbers

February Cook-Off 2022 Division 2

Perfect Permutation, Prefix Permutation

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing

CodeChef Starters 28 Division 2 (Rated)

Permutation Xority, Count the Holidays

March Cook-Off 2022 Division 2

Equal Mex Splitting, Janmansh at Fruit Market

Starters 43 Division 2 (Rated)

The Optimal Pairs, Distinct Palindrome

Starters 46 Division 2 (Rated)

Sort the String

Starters 47 Division 3 (Rated)

Similar Heights, Construct N, End Sorted, Minimum Coins

July Lunchtime 2022 Division 3 (Rated)

The Last Levels, Easy Pronunciation, Yet Another Palindrome Making Problem, Maximum Median Matching, Largest Family

Starters 74 Division 2 (Rated)

Lcm hates Gcd, Odd Even Binary String

Total Problems Solved: 87