Prayank Mathur

• Username: 4★codingstar
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Dhanbad
• 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: 13

Current Ratings Graph Old Ratings Graph

1850 (-28)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2015(2015-05-18 15:00:00)

Global Rank:   2091

Cheated in:   

Ratings System Update

(2015-05-18 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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1850 (+164)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   2091

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 (13)

December Challenge 2013

Magic Pairs, Chef and Codes

February Challenge 2014

Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays

March Challenge 2014

Team Split, Walk, Little Chef and Numbers

April Challenge 2014

Divide the Tangerine, Shortest Path in Binary Trees, Chef and Digits, Farmer Feb, Counting Matrices, Sereja and Permutation

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Reach The Point, Dish Owner, Count Substrings, Chef and Frogs, Garden Game, Little Elephant and Painting, Chef and Rectangle Genome

August Challenge 2014

Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift

September Challenge 2014

Factorisation, Flooring, Fun with Rotation, Chef and sequence, Chef and Left-Right, Chef and Rainbow Array - 2

October Challenge 2014

Remy paints the fence, DevuLand, Dinosaurs and Laddus, Magical Girl and Colored Liquid Potions, Chef and Square, Chef and Painting, Chef and Ground

January Challenge 2015

Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

February Challenge 2015

Chef and Chain, Let us play with rank list, Chef and Equality

May Challenge 2015

Chef and Prime Divisors, Chef and new recipe

Total Problems Solved: 67