M Krishna Kumar

• Username: 4★krishna293
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Dhanbad
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 38

Current Ratings Graph Old Ratings Graph

1949 (-47)RatingProvisional
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October Challenge 2017(2017-10-16 15:00:00)

Global Rank:   7304

Cheated in:   

Ratings System Update

(2017-10-16 15:00:00)

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1949 (+276)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   7304

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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Contests (38)

August Challenge 2015

Cooking Machine

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle

November Challenge 2015

Chef and collection of stamps, Eugene and function, Simple Sum, Chef and cakes

December Challenge 2015

Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters

October Cook-Off 2015

Almost Sorted Permutation

November Cook-Off 2015

Sereja and Line, Sereja and Array and Subtracting

December Cook-Off 2015

Chef and Subarrays

January Long Challenge 2016

Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume

February Challenge 2016

Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective, Matrix Maximum Sum

March Challenge 2016

Chef And Hungry Birds, Palindromic substrings, maximize the sum, Chef And Special Dishes

May Challenge 2016

Chef and math, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu

June Challenge 2016

Chef And The Hiring Event, Chef and Rectangle Array, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Devu and an Array

July Challenge 2016

Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity

August Challenge 2016

Chef and His Garden, Chef and Circle Run, Chef and Chocolate, Chef and Round Run

September Challenge 2016

Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation

October Challenge 2016

Chef and Keyboard, Big Queries, Fenwick Iterations, Chef and Three Dogs, Chef and Two String

November Challenge 2016

Count Permutations, Friends Meeting, Urban Development, Gift and Chef, Chef and squares, Task for Alexey

December Challenge 2016

Train Partner, Kth Max Subarray, Kirito in labyrinth, Our Base is Under Attack

June Cook-Off 2016

Sticks, Right Triangle

July Cook-Off 2016

Chef and Proportion, Chef and Numbers

September Cook-Off 2016

Lazy Jem, The Lost Arithmetic Sequences

October Cook-Off 2016

Watson asks Does Permutation Exist, ChefWatson uses Social Network

February Lunchtime 2016

Chef and Socks

May Lunchtime 2016

Akhil And Colored Balls, Akhil And Random String

June Lunchtime 2016

Collisions, One more weird game

July Lunchtime 2016

Drumpf for President!, Lumpy - The Bus Driver

September Lunchtime 2016

Chef and Inequality

October Lunchtime 2016

The Largest Bouquet

November Lunchtime 2016

Chef and his Students, Chef and Square Set

January Challenge 2017

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

February Challenge 2017

Chef and Yoda, Eugene and big number, Interval Game, Chef and Triangles, Chef and his Best Friend, Chef and His Apartment Dues, Most Frequent Element, Gerrymander

March Challenge 2017

Cooking Schedule, Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix

January Lunchtime 2017

Nothing in Common

February Lunchtime 2017

Bear and Milky Cookies

April Challenge 2017

Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

October Challenge 2017

Chef and Magic Arrays

March Cook-Off 2017

Rainbow Graph, Safe Robot

June Cook-Off 2017

Ada and crayons, SnackUp

Total Problems Solved: 343