Ravi prakash

• Username: 4★codcrack
• Country:  India
• Student/Professional:Student
• Institution:R.D. Rajpal Public School Sector 9, Dwarka, New Delhi, Delhi 110077
• 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

1878 (-23)RatingProvisional
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April Challenge 2018 Division 2(2018-04-17 15:01:00)

Global Rank:   1539

Cheated in:   

Ratings System Update

(2018-04-17 15:01:00)

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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1878 (+155)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   1539

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)

December Challenge 2015

Chef and Filters, Oracle Devu and Longest Common Subsequence

October Cook-Off 2015

Almost Sorted Permutation, Word Stem

September Lunchtime 2015

Sum of palindromic numbers

January Long Challenge 2016

Rupsa and the Game, Churu and Balls, Chef and Making Triples, Chef and Time Machine, Devu and Perfume

February Challenge 2016

Devu and a light discussion, Chef-Detective, Chef and Strange Operations, Sereja and Two Lines

March Challenge 2016

Palindromic substrings, maximize the sum

April Challenge 2016

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

May Challenge 2016

Chef and Big Soccer, Forest Gathering

June Challenge 2016

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

July Challenge 2016

Chef and Tetris, Chefland and Electricity, Chef and Robots Competition, Chef and Segments, Andrash and Stipendium

August Challenge 2016

Chef and Circle Run, Chef and Chocolate, Chef and Round Run

September Challenge 2016

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

October Challenge 2016

Sereja and Progressions, Chef and Keyboard, Big Queries, Fenwick Iterations, Chef and Three Dogs, Chef and Two String

November Challenge 2016

Urban Development, Task for Alexey, Chef and squares, Gift and Chef, Friends Meeting, Count Permutations

March Challenge 2017

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

May Challenge 2017

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

June Challenge 2017

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

August Long Challenge 2017

Chef and Mover

March Challenge 2018 DIV 2

Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas

April Challenge 2018 Division 2

Weight of Numbers, Count Good Prefixes, Average of Pairs, Workers

Total Problems Solved: 102