Anup Kumar Rai

• Username: 3★grind
• Country:  India
• Student/Professional:Professional
• Organisation:Sprinklr Solutions Pvt Ltd
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 26

Current Ratings Graph Old Ratings Graph

1609 (-47)RatingProvisional
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February Challenge 2019 Division 2(2019-02-13 15:00:02)

Global Rank:   12041

Cheated in:   

Ratings System Update

(2019-02-13 15:00:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1609 (+149)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   12041

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 (26)

May Challenge 2014

Chef-jumping, Compilers and Parsers, Stone

June Challenge 2014

Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Count Substrings, Reach The Point

August Challenge 2014

Chef and Gift

September Challenge 2014

Chef and Left-Right, Fun with Rotation

November Challenge 2014

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

December Challenge 2014

XOR with Subset, Chef and Apple Trees

June Lunchtime 2014

The Smallest Pair

January Challenge 2015

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

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Chef and Strings, 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

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

June Challenge 2015

Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons

July Challenge 2015

Bread, MasterChef, Na2a and lucky stone, Chef and Cube

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix

May Cook-Off 2015

Devu and friendship testing, Devu and decorating birthday cake

June Cook-Off 2015

Longest non regular parentheses sub-sequence, Strange operations

February Challenge 2016

Chef-Detective

March Challenge 2016

Palindromic substrings, maximize the sum, Chef And Special Dishes

May Challenge 2016

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

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

October Challenge 2016

Chef and Keyboard

February Challenge 2019 Division 2

Appy and Contest

Total Problems Solved: 84