Preyam Rao

• Username: 5★preyam
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur West Bengal, 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: 38

Current Ratings Graph Old Ratings Graph

2026 (+58)RatingProvisional
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Starters 71 Division 2 (Rated)(2022-12-28 23:00:02)

Global Rank:   17

Cheated in:   

Ratings System Update

(2022-12-28 23:00:02)

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1968 (-114)RatingProvisional
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Starters 69 Division 1 (Rated till 6-stars)(2022-12-20 00:00:00)

Global Rank:   74

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 (38)

February Challenge 2020 Division 2

No Change Required, School of Geometry, Hard Cash

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Ready Bitwise, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

May Challenge 2020 Division 1

Triple Sort, Chef and Bitwise Product

March Cook-Off 2020 Division 2

Mysterious Sequence, Find Your Gift, Box of Chocolates

May Cook-Off 2020 Division 1

Roads in Chefland

February Lunchtime 2020 Division 2

At the Gates

March Lunchtime 2020 Division 2 (Unrated)

Chef Swaps Digits, Good Prefix

April Lunchtime 2020 Division 1

Positive Mex

May Lunchtime 2020 Division 1

Convert the String

June Challenge 2020 Division 1

The Tom and Jerry Game!, Operations on a Tuple, Convenient Airports

July Challenge 2020 Division 1

Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef

August Challenge 2020 Division 1

Subsequence Frequency Counting, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 1

Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix

July Cook-Off 2020 Division 1

Even-tual Reduction

July Lunchtime 2020 Division 2

Chef and Steps, Maximum Candies

June Cook-Off 2020 Division 1

Per Capita Income

June Lunchtime 2020 Division 1

Maximum AND

October Challenge 2020 Division 1

Positive AND, Replace for X

November Challenge 2020 Division 1

Restore Sequence, Magical Candy Store

January Challenge 2021 Division 2

Watching CPL, Fair Elections

December Challenge 2020 Division 1

Hail XOR, Calculus, Positive Prefixes, Even Pair Sum

December Cook-Off 2020 Division 1

Self-Destructing Strings, Circle of Chaos

January Cook-Off 2021 Division 2

Prime Tuples, Maximise Islands

December Lunchtime 2020 Division 1 (Unrated)

Three Letters, One Zero Swaps

January Lunchtime 2021 Division 2 (Unrated)

Good Grid, Dreams of Divisibility, Binary Subsequence, Even Differences, Even Sum

October Cook-Off 2020 Division 1

Path-etic Sums

November Cook-Off 2020 Division 1

Flip the String, Chef and IPC Certificates

October Lunchtime 2020 Division 1

Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Cute Chef Gift

November Lunchtime 2020 Division 1

Gasoline

September Cook-Off 2020 Division 1

Maximise Subsequence Value, Minimum Insertions

February Challenge 2021 Division 2

Frog Sort, Team Name, Maximise Function

March Cook-Off 2021 Division 2

Consecutive Deletions, Matrix XOR, Guess the Number

February Lunchtime 2021 Division 2

Average Sorting, Palpal Strings, Coprime Range

March Challenge 2021 Division 2

Interesting XOR!, College Life 4, Space Arrays

April Cook-Off 2021 Division 2

Tree Distances, OR of ANDs, Chocolate Monger

May Challenge 2021 Division 1 (Unrated)

Tree House, Xor Equality, Tic Tac Toe

August Challenge 2021 Division 1 (Unrated)

Special Triplets, Problem Difficulties, Olympics Ranking

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

SnackDown 2021 - Online Pre-Elimination

Product Pain

FizzBuzz Division 2 (Rated)

Magical Planks, Clean The Sequence, Substring Minimum Function, Can_Reach, Kingdom Attack

Starters 69 Division 1 (Rated till 6-stars)

Distinct Sequence, Longest Subarray

Starters 71 Division 2 (Rated)

Pet Store, Flip the Prefix, Expected Sum, Maximizing LCS, Smallest Difference

Total Problems Solved: 146