Kalyan Kumar

• Username: 4★kalyan_kumar
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur West Bengal, 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: 33

Current Ratings Graph Old Ratings Graph

1838 (-8)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2016(2016-05-16 15:00:00)

Global Rank:   1051

Cheated in:   

Ratings System Update

(2016-05-16 15:00:00)

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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1838 (+52)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2016(2022-12-20 00:00:00)

Global Rank:   1051

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 (33)

June Cook-Off 2014

Counting Flags

September Cook-Off 2014, ACM-ICPC Warm up

Subarray GCD

October Cook-Off 2014

Walk on the Axis, The Army

November Cook-Off 2014

Brackets

December Cook-Off 2014

Good Joke!

June Challenge 2014

Chef and Subarray, Guessing Game

September Challenge 2014

Chef and Rainbow Array - 2, Chef and Left-Right, Fun with Rotation

October Challenge 2014

Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Red Black Tree, Let us construct palindrome, Distinct Characters Subsequence, Chef and Segment Game

December Challenge 2014

Chef and Bracket-Pairs, Chef and Apple Trees

June Lunchtime 2014

The Smallest Pair

September Lunchtime 2014

Chef and easy problem

October Lunchtime 2014

Tanu and Head-bob

January Challenge 2015

Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

January Cook-Off 2015

Suraj goes shopping

January Lunchtime 2015

Piece of cake

February Challenge 2015

Chef and Equality, Let us play with rank list, Chef and Chain

March Challenge 2015

Chef and Notebooks, Sign Wave

April Challenge 2015

Chef and Interview, Broken Telephone, Chef and Piano Scales

May Challenge 2015

Set Difference , Chef and new recipe, Chef and Prime Divisors, Devu and binary String

June Challenge 2015

Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Anticommutative implication

July Challenge 2015

Addition and Multiplication, Chef and Cube, Na2a and lucky stone, Bread

October Challenge 2015

Count Subarrays, Who dares to be a millionaire, Spheres

May Cook-Off 2015

Devu and friendship testing

June Cook-Off 2015

Longest non regular parentheses sub-sequence, Strange operations

February Lunchtime 2015

Lucky Four

March Lunchtime 2015

Chef Anup

May Lunchtime 2015

Devu and Grapes

May Challenge 2016

Chef and Balls, Chef and Big Soccer, Laddu

Total Problems Solved: 106