rahul dwivedi

• Username: 3★rahulrd
• Country:  India
• Student/Professional:Student
• Institution:Acharya Narendra Dev College, New Delhi 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: 28

Current Ratings Graph Old Ratings Graph

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October Lunchtime 2019 Division 2(2019-10-26 23:00:02)

Global Rank:   1062

Cheated in:   

Ratings System Update

(2019-10-26 23:00:02)

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1629 (+14)RatingProvisional
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October Lunchtime 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   1062

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 (28)

June Challenge 2015

Chef and Memory Limit

July Challenge 2015

Bread, Chef and Cube

August Challenge 2015

Cooking Machine

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix

October Challenge 2015

Count Subarrays, Who dares to be a millionaire

December Challenge 2015

Chef and the stones, Oracle Devu and Longest Common Subsequence

November Cook-Off 2015

Sereja and Array and Subtracting

October Lunchtime 2015

emitL

November Lunchtime 2015

Black And White Cells

December Lunchtime 2015

Distinct Codes

January Long Challenge 2016

Churu and Balls, Chef and Time Machine, Devu and Perfume

February Challenge 2016

Chef-Detective

March Challenge 2016

Palindromic substrings

May Challenge 2016

Chef and Balls, Laddu

June Challenge 2016

Devu and an Array, Chef And Binary Operation, Chef And The Hiring Event, Chef and Coins Game

July Challenge 2016

Andrash and Stipendium, Chefland and Electricity

August Challenge 2016

Chef and Chocolate

September Challenge 2016

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

October Challenge 2016

Chef and Three Dogs, Fenwick Iterations, Chef and Keyboard

February Cook-Off 2016

Puppy and Sum

June Cook-Off 2016

Sticks

October Cook-Off 2016

Watson asks Does Permutation Exist, ChefWatson uses Social Network

May Lunchtime 2016

Akhil And Colored Balls

March Challenge 2017

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

October Lunchtime 2019 Division 2

Khaled in HIT, Counting Inversions Revisited

Total Problems Solved: 94