rahul kumar

• Username: 4★princerk
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology Patna Bihar, 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: 40

Current Ratings Graph Old Ratings Graph

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October Challenge 2019 Division 2(2019-10-14 15:00:02)

Global Rank:   11079

Cheated in:   

Ratings System Update

(2019-10-14 15:00:02)

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1808 (+284)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   11079

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 (40)

May Challenge 2013

Your Name is Mine

June Challenge 2013

Predictopus, Lapindromes, To challenge or not

June Cook-Off 2013

Attic Crossing

July Challenge 2013

Chef and Walking on the rectangle

July Cook-off 2013

Chopsticks

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Save The Princess, Chef and Segments, Deleting numbers, Splitting Candies

August Cook-Off 2013

Chef and The Right Triangles

September Challenge 2013

Little Elephant and Exams, Sereja and Snake, CAO Stage-2, CAO Stage-1, Chef and Integers , Cool Guys

September Cook-Off 2013

Code

October Challenge 2013

Helping Lira, Maxim and Dividers

November Challenge 2013

Missing some chairs, Yet Another Cute Girl, Square Digit Squares, Sereja and Vectors, Superpowers of 2, Uncle Johny

November Cook-off 2013

Am I a Fibonacci Number

November Lunchtime 2013

Lucy and the Number Game

December Challenge 2013

Reign, Magic Pairs, Funny Marbles, Chef and Codes, Art in Digital Age

December Lunchtime 2013

Mike and Task Packages, Mike and Matrices

January Challenge 2014

Magic Trick, Bon Appetit, Please like me, Chef and Feedback

February Cook-Off 2014

Chef and Remissness, Chef and Kingship

March Cook-Off 2014

Dividing Stamps

September Cook-Off 2014, ACM-ICPC Warm up

Subarray GCD, Sherlock and the Grid

November Cook-Off 2014

Brackets, Petersen Graph

February Challenge 2014

Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Make It Zero 2

April Challenge 2014

Farmer Feb, Shortest Path in Binary Trees, Divide the Tangerine, Chef and Digits, Counting Matrices, Sereja and Permutation

June Challenge 2014

Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Reach The Point, Dish Owner, Count Substrings, Chef and Frogs, Garden Game, Chef and Rectangle Genome

August Challenge 2014

Mountain Holidays 2, Chef and Reversing, Chef and Gift

November Challenge 2014

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

January Lunchtime 2014

Chef and String

February Lunchtime 2014

Sereja and ASum

June Lunchtime 2014

The Smallest Pair

August Lunchtime 2014

Harrenhal

January Challenge 2015

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

August Long Challenge 2017

Chef and Rainbow Array, Chef and Mover, Greedy Candidates

October Challenge 2019 Division 2

Chef and Maximum Star Value

Total Problems Solved: 195