Praveen kumar

• Username: 3★prnkmr
• Country:  India
• Student/Professional:Professional
• Organisation:Freshworks
• 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: 41

Current Ratings Graph Old Ratings Graph

1641 (-43)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2021 Division 3(2021-03-15 15:00:04)

Global Rank:   14050

Cheated in:   

Ratings System Update

(2021-03-15 15:00:04)

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?

1641 (+138)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2021 Division 3(2022-12-20 00:00:00)

Global Rank:   14050

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)

None

Practice Paths (0)

None

Contests (41)

November Challenge 2013

Uncle Johny

December Challenge 2013

Magic Pairs

December Lunchtime 2013

Mike and Matrices

January Challenge 2014

Chef and Feedback

June Cook-Off 2014

Painting, Counting Flags

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD

October Cook-Off 2014

Walk on the Axis

February Challenge 2014

Longest Common Pattern, Little Elephant and Subarrays

March Challenge 2014

Walk, Little Chef and Numbers

April Challenge 2014

Shortest Path in Binary Trees, Farmer Feb

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Reach The Point, Count Substrings, Chef and Frogs

August Challenge 2014

The Leaking Robot, Chef and Gift

September Challenge 2014

Chef and Left-Right, Fun with Rotation

October Challenge 2014

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

November Challenge 2014

Distinct Characters Subsequence, Let us construct palindrome

January Lunchtime 2014

Chef and Shop

May Lunchtime 2014

Approximately II

September Lunchtime 2014

Chef and easy problem

January Challenge 2015

Chef and Stones

February Challenge 2015

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

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Chef and Interview, Broken Telephone

May Challenge 2015

Chef and new recipe

June Challenge 2015

Chef and Memory Limit, Chef and Polygons

July Challenge 2015

Chef and Cube

October Challenge 2015

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

November Challenge 2015

Chef and cakes, Eugene and function

June Cook-Off 2015

Strange operations

October Challenge 2017

Chef and a great voluntary Program, Max Mex, A Balanced Contest

November Challenge 2017

Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes

January Challenge 2019 Division 2

Fancy Quotes, Chef and Modulo Game, Different Neighbours, Lucky Number Game

February Challenge 2019 Division 2

Manhattan Rectangle, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef

January Challenge 2020 Division 2

Chef and Dynamo, Doraemon, Breaking Bricks

June Challenge 2020 Division 2

Even Matrix, Chef and Price Control, Chef and String, Covid Sampling (Challenge), Chef and Icecream, The Tom and Jerry Game!

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

March Challenge 2021 Division 3

Chef and Groups, No Time to Wait

Total Problems Solved: 109