Raj Krishna Srivastava

• Username: 2★krishna77777
• Country:  India
• Student/Professional:Professional
• Organisation:Indian Oil Corporation Ltd.
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 29

Current Ratings Graph Old Ratings Graph

1568 (-9)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2020 Division 2(2020-06-15 15:00:02)

Global Rank:   6863

Cheated in:   

Ratings System Update

(2020-06-15 15:00:02)

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?

1568 (+9)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   6863

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 (29)

October Challenge 2014

Chef and Ground

July Challenge 2015

Bread, Na2a and lucky stone, Chef and Cube

August Challenge 2015

Cooking Machine, Aditi and Magic Trick

September Challenge 2015

Count Steps in Matrix, Bank robbery

October Challenge 2015

Who dares to be a millionaire

July Cook-Off 2015

Cops and the Thief Devu

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

September Mega Cook-Off 2015

Forgotten Language

October Cook-Off 2015

Almost Sorted Permutation

July Lunchtime 2015

Greedy puppy, Puppy and game

September Lunchtime 2015

Sum of palindromic numbers

August Cook-Off 2018 Division 2

GukiZ and Candies, Mixi Game

October Mega Cook-Off 2018 Division 2

Ada and the Staircase, Pumping Water

August Challenge 2018 Division 2

Problem Sort, Sheokand and Number, Spell Bob

September Challenge 2018 Division 2

Table Game, Chef and Adventures, War of XORs, Magician versus Chef, Chef and Condition Zero (Challenge)

December Challenge 2018 Division 2

Chef and Interactive Contests, Chef and An Ideal Problem

November Challenge 2018 Division 2

Chef and Difficult Contests

October Challenge 2018 Division 2

Minimize Digitsum, Chef and Serves, Byte to Bit

January Challenge 2019 Division 2

Distinct Pairs, Fancy Quotes

February Challenge 2019 Division 2

Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef

March Cook-Off 2019 Division 2

XOR N-bonacci Sequence

April Challenge 2019 Division 2

Friend or Girlfriend, Maximum Remaining, Fencing

May Challenge 2019 Division 2

Reduce to One

May Cook-Off 2019 Division 2

Chain Reaction, Recover the Sequence

July Challenge 2019 Division 2

Chef and Mean

March Cook-Off 2020 Division 2

Find Your Gift, Box of Chocolates

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control

Total Problems Solved: 85