Duffer

• Username: 5★duffer
• Country:  India
• Student/Professional:Professional
• Organisation:Adobe
• 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: 8

Current Ratings Graph Old Ratings Graph

2058 (+41)RatingProvisional
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June Challenge 2015(2015-06-15 15:00:00)

Global Rank:   369

Cheated in:   

Ratings System Update

(2015-06-15 15:00:00)

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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2058 (-36)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2015(2022-12-20 00:00:00)

Global Rank:   369

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 (8)

October Cook-Off 2014

Walk on the Axis, The Army

August Challenge 2014

The Leaking Robot, Cleaning Tables, Chef and Gift

November Challenge 2014

Sereja and Permutations, Let us construct palindrome, Chef and Red Black Tree, Distinct Characters Subsequence, Fombinatorial, Chef and Words, Chef and Segment Game

January Challenge 2015

Sereja and Number Division 2, Gcd Queries, Ranka, One Dimensional Kingdoms, Sereja and Votes, Chef and Stones, Sereja and LCM, Chef and A Large Permutation, Queries on the String

January Cook-Off 2015

Suraj goes shopping, Tojo hates probabilities

February Challenge 2015

Time to Study Graphs with Chef, Chef and Equality, Jigsaw Puzzle Solving, Let us play with rank list, Chef and Strange Formula, Chef and Chain, Chef and Strings

March Challenge 2015

Count Substrings, Chef and Notebooks, Sereja and Random Array, Devu and his Class, Sign Wave

April Challenge 2015

Chef and Interview, Chef and Piano Scales, Division of Lands, Inversion sorting, Broken Telephone, Chef and Array, Count Sequences

June Challenge 2015

Sereja and Matrix Division, Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Chef and String

Total Problems Solved: 51