Sudhir Krishnakumar

• Username: 5★sudhir_k
• Country:  India
• Student/Professional:Professional
• Organisation:Amazon Development Center, Chennai
• 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: 21

Current Ratings Graph Old Ratings Graph

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September Challenge 2017(2017-09-11 15:00:00)

Global Rank:   380

Cheated in:   

Ratings System Update

(2017-09-11 15:00:00)

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2110 (+57)RatingProvisional
Rating i Provisional Rating, click to know more

September Challenge 2017(2022-12-20 00:00:00)

Global Rank:   380

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 (21)

September Challenge 2014

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

October Challenge 2014

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

May Challenge 2015

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

June Cook-Off 2015

Longest non regular parentheses sub-sequence, Strange operations

July Cook-Off 2015

Cops and the Thief Devu, Maximize Disjoint Pair Sum

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

September Mega Cook-Off 2015

Forgotten Language, Super Numbers, Stacks

October Cook-Off 2015

Word Stem, Almost Sorted Permutation

March Lunchtime 2015

Chef Anup

July Lunchtime 2015

Puppy and game, Greedy puppy

September Lunchtime 2015

Sum of palindromic numbers

October Lunchtime 2015

emitL

December Lunchtime 2015

Distinct Codes

December Challenge 2016

Train Partner, Kirito in labyrinth, Our Base is Under Attack

January Cook-Off 2016

Chef and Fruits

March Cook-Off 2016

Digital clock, Dual Nim, Alternating subarray prefix

July Lunchtime 2016

Drumpf for President!, Lumpy - The Bus Driver

January Challenge 2017

Cats and Dogs, Tourists in Mancunia, Reservior, Capital Movement

March Challenge 2017

Cooking Schedule, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

January Cook-Off 2017

Digit Longest Increasing Subsequences 2

September Challenge 2017

Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums

Total Problems Solved: 108