Rohan Dayal

• Username: 3★r0hn00
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Guwahati Assam
• 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

1634 (+38)RatingProvisional
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Starters 203 (Rated)(2025-09-10 22:00:04)

Global Rank:   81

Cheated in:   

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(2025-09-10 22:00:04)

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1528 (-95)RatingProvisional
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Starters 49 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1271

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)

March Challenge 2021 Division 3

Chef and Groups, No Time to Wait

April CodeChef Starters 2021 Division 3 (Rated)

Chef On Island, Hiring Test

May CodeChef Starters 2021 Division 3 (Rated)

Lazy Chef, Correct Sentence

June CodeChef Starters 2021 Division 3 (Rated)

Total Correct Submissions, Chess Match, Cyclic Quadrilateral

July Challenge 2021 Division 3 (Rated)

Maximum Production, Relativity

September Challenge 2021 Division 3 (Rated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

September Cook-Off 2021 Division 3

Cars and Bikes, Fake GCD

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 11 Division 3 (Rated)

The Grid Fill Problem, Find the Direction, Obtain the Sum, The Two Dishes

CodeChef Starters 12 Division 3 (Rated)

Good Weather, Make it Divisible

CodeChef Starters 14 Division 2 (Unrated)

Odd GCD, Diagonal movement, FIXFIX

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Equal Coins, Which Fuel is Cheaper

CodeChef Starters 17 Division 2 (Rated)

GCD of Prefixes, New Piece

FizzBuzz Division 2 (Rated)

Magical Planks, Substring Minimum Function, Can_Reach

March Long Two 2022, Division 2 (Unrated)

Chef and Races, Increase IQ, The Three Topics, The Rating Dilemma

CodeChef Starters 30 Division 2 (Rated)

Gift Shop and Coupon, Balanced Reversals

July Long Two 2022 Division 2 (Unrated)

Maximize Difference, Chef in his Office, To Divide or Not To Divide, Sum of Product 1, Insurance, Hungry Chef

Starters 49 Division 2 (Rated)

N Buttons 1 Bulb, Split The String, High Frequency, Is it hot or cold, Maximise the Tastiness, Monks, Valid Minimum

Starters 196 (Rated)

More Cookies, Sugar Limit, Append Average

Starters 197 (Rated)

Good Ranking (Pair), All Odd Prefix Sums, Bowling Balls

Starters 198 (Rated)

Currency Exchange, Decoration Discount

Starters 199 (Rated)

Fence Colouring, Grid MEX, Subtract or Divide, Brick Comparisions

Starters 200 (Rated)

Random NIM, Restrict Palindromes, Chef Bakes Cake, Good Subsequence

Starters 201 (Rated)

Compare and Connect, Huge Grid (Easy Version), Mixing Liquids, Mark Points

Monday Munch - DSA Challenge

Diameter of the tree, Search an element in an array, ZigZag Traversal, Merge two sorted arrays, Check Palindrome, Maximum Sum of K Elements

Monday Munch - DSA Challenge 02

Good Numbers, Cycle in a linked list, Count of set bits, Practice - Josephus Problem, Chef Square Tile Problem, Search in a 2D Matrix

Starters 203 (Rated)

MEX on Ranges, Maximum MST, Cab Rides, Passing Grade

Monday Munch - DSA Challenge 03

Count Subarrays, Rooks, Find maximum in an Array, Segmentation Fault, Insertion and deletion together in a Heap, Find Course Schedule

Monday Munch - DSA Challenge 04

Apples and oranges, Least significant bit, and most significant bit, Mirror Tree, Galactic Network, Check if the array is sorted, Find Remainder

Total Problems Solved: 157