Shyam Kumar Singh

• Username: 4★d_evilal
• Country:  India
• Student/Professional:Student
• Institution:Birsa Institute of Technology, Sindri Jharkhand, India
• 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: 23

Current Ratings Graph Old Ratings Graph

1874 (+44)RatingProvisional
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August Cook-Off 2021 Division 2(2021-08-23 00:30:02)

Global Rank:   56

Cheated in:   

Ratings System Update

(2021-08-23 00:30:02)

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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1874 (-129)RatingProvisional
Rating i Provisional Rating, click to know more

August Cook-Off 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   56

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 (23)

December Challenge 2019 Division 2

That Is My Score!, Plus Multiply

January Challenge 2020 Division 2

Breaking Bricks

February Challenge 2020 Division 2

School of Geometry, Hard Cash

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

April Challenge 2020 Division 2

Leaked Answers (Challenge), COVID Pandemic and Long Queue, Sell All the Cars, Unit GCD, Squared Subsequences, Strange Number

May Challenge 2020 Division 2

Triple Sort, Coronavirus Spread, Isolation Centers

March Cook-Off 2020 Division 2

Find Your Gift

June Challenge 2020 Division 2

Even Matrix, Chef and Price Control, Chef and String, Chef and Icecream, The Delicious Cake, Operations on a Tuple, The Tom and Jerry Game!

July Cook-Off 2020 Division 1

Even-tual Reduction

August Lunchtime 2020 Division 2

Mode of Frequencies

January Challenge 2021 Division 2

Watching CPL, Fair Elections

December Cook-Off 2020 Division 2

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

December Lunchtime 2020 Division 2 (Unrated)

One Zero Swaps, Sed Sequences, Three Letters

January Lunchtime 2021 Division 2 (Unrated)

Binary Subsequence, Even Sum, Even Differences

October Cook-Off 2020 Division 2

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

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates

October Lunchtime 2020 Division 2

AND Plus OR, Chef and Subtree MEXs

November Lunchtime 2020 Division 2

Gasoline Introduction, Gasoline

September Lunchtime 2020 Division 2

GCD operations, Watermelon

April Lunchtime 2021 Division 2

Array Rotation, Bench Press, Chef in Heaven

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components

June Cook-Off 2021 Division 2

The Wave

June Lunchtime 2021 Division 2

From Rational to Binary, False Number, Unpleasant Ones

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

August Cook-Off 2021 Division 2

Odd Array, Different String, Chef and Closure, Equal Difference, Clear the Array

SnackDown 2021 - Online Qualifiers

Lucky Number

Total Problems Solved: 163