waliul hasan rony

• Username: 3★wacoder
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Chittagong University of Engineering & Technology, Bangladesh
• 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: 20

Current Ratings Graph Old Ratings Graph

1618 (+31)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2017(2017-11-13 19:00:00)

Global Rank:   1542

Cheated in:   

Ratings System Update

(2017-11-13 19:00:00)

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?

1618 (-27)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2017(2022-12-20 00:00:00)

Global Rank:   1542

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 (20)

April Challenge 2016

Chef And Coloring, Chef and Ballons

September Challenge 2016

Chef and digits of a number

October Challenge 2016

Chef and Keyboard

September Lunchtime 2016

Chef and Inequality

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

April Challenge 2017

Dish Of Life, Similar Dishes

May Challenge 2017

Chef and Sub Array , Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers

June Challenge 2017

Triplets, Xenny and Coin Rankings, A Good Set, Chef and the Feast

August Long Challenge 2017

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

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums

November Challenge 2017

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

April Cook-Off 2017

Bear and Candies 123

September Cook-Off 2017

Statistics Construction, Subsequence Equality

April Lunchtime 2017

Bear and Segment 01

October Lunchtime 2017

Buggy Calculator

Total Problems Solved: 48