Repon kumar Roy

• Username: 4★newcoder_bd
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Bangladesh University of Engineering and Technology
• 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: 24

Current Ratings Graph Old Ratings Graph

1944 (+71)RatingProvisional
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March Cook-Off 2021 Division 2(2021-03-22 00:00:02)

Global Rank:   59

Cheated in:   

Ratings System Update

(2021-03-22 00:00:02)

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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1944 (-111)RatingProvisional
Rating i Provisional Rating, click to know more

March Cook-Off 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   59

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 (24)

January Challenge 2015

Chef and A Large Permutation, Queries on the String, Gcd Queries, Chef and Stones, Sereja and Votes

March Challenge 2015

Chef and Notebooks

May Challenge 2015

Chef and Prime Divisors, Set Difference , Chef and new recipe

June Challenge 2015

Chef and Memory Limit

July Challenge 2015

Chef and Cube

August Challenge 2015

Devu And Churu , Chef and insomnia, Aditi and Magic Trick, Cooking Machine, Gravity Guy, Way Out

October Challenge 2015

Count Subarrays, Who dares to be a millionaire

November Challenge 2015

Chef and cakes

December Challenge 2015

Chef and Girls, Oracle Devu and Longest Common Subsequence, Chef and the stones, Chef and Filters

February Challenge 2016

Chef and Strange Operations, Chef-Detective

March Challenge 2016

Palindromic substrings

April Challenge 2016

Chef And Coloring, Chef And Magical Path, Chef and Ballons, Help Watson Escape

July Challenge 2016

Andrash and Stipendium, Chef and Segments, Chef and special numbers, Chef and Robots Competition, Chefland and Electricity

September Challenge 2016

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

March Challenge 2017

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

June Challenge 2017

Xenny and Coin Rankings, Pairwise union of sets, Triplets, Chef and the Feast, Cloning, A Good Set, Chef and Prime Queries

July Challenge 2017

Chef and Sign Sequences, Whats in the Name, Calculator

August Long Challenge 2017

Greedy Candidates, Palindromic Game, Chef and Mover, Chef and Rainbow Array, Chef And Fibonacci Array

December Challenge 2017

Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out

June Cook-Off 2017

Ada and crayons, Knight Covering, SnackUp

March Cook-Off 2021 Division 2

Matrix XOR, Guess the Number, Consecutive Deletions

March Challenge 2021 Division 2

Interesting XOR!, Dense Graph, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays, Maximum Topological Sort

Total Problems Solved: 178