gnana sundar

• Username: 4★sundar18
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Information Technology, Design and Manufacturing, Jabalpur Madhya Pradesh, India
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

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No. of Contests Participated: 17

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C.O.D.E.R.S Division 2 (Rated)(2021-11-29 23:00:02)

Global Rank:   29

Cheated in:   

Ratings System Update

(2021-11-29 23:00:02)

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1859 (-158)RatingProvisional
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C.O.D.E.R.S Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   29

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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Contests (17)

December Challenge 2020 Division 2

Even Pair Sum, Vaccine Production, Vaccine Distribution

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

February Challenge 2021 Division 3

Frog Sort, Team Name, Chef and Meetings, Prime Game, Maximise Function, Highest Divisor

February Lunchtime 2021 Division 2

Palpal Strings, Coprime Range

March Challenge 2021 Division 2

Interesting XOR!, Chef and Groups, Consecutive Adding, Space Arrays, No Time to Wait

May Challenge 2021 Division 2 (Rated)

Xor Equality, Modular Equation

June Challenge 2021 Division 2 (Unrated)

Bitwise Tuples, Bella ciao, Summer Heat

July Challenge 2021 Division 2 (Unrated)

XxOoRr, Chef vs Bharat, Optimal Denomination

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 2

Beautiful Pairs, Array Rotation Returns

CodeChef Starters 6 Division 2 (Unrated)

Joker and Batman, Even tuples, Three Dices, Cricket Ranking

CodeChef Starters 7 Division 2 (Unrated)

Chess Format

August Challenge 2021 Division 2 (Unrated)

Special Triplets, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

August Cook-Off 2021 Division 2

Different String, Chef and Closure, Equal Difference

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

September Challenge 2021 Division 2 (Unrated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, Digit Removal, MEX-OR

CodeChef Starters 16 Division 2 (Unrated)

Professor And Directions, Chef and Magical Steps

October Lunchtime 2021 Division 2

Chef and Water Car, Exactly N plus 1 Values

November Challenge 2021 Division 2 (Unrated)

Xor Equation, Weird Palindrome Making, Hill Sequence, Equal Coins, Maximise the bridges

November Cook-Off 2021 Division 2

Missing Sums, Make it Divisible

CodeChef Starters 17 Division 2 (Rated)

Binary Inversion, GCD of Prefixes, String Game, Partition It, New Piece

CodeChef Starters 19 Division 1 (Unrated)

The Alternating Sum

C.O.D.E.R.S Division 2 (Rated)

The One On The Last Night, The One Where No One is Ready, The One with All the Candy, The One with Ross Wedding

FizzBuzz Division 2 (Rated)

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

November Lunchtime 2021 Division 2

Expected Weight, Strange Minimization, Rapid Re-Orderings

December Challenge 2021 Division 1 (Unrated)

Check Mate, Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Utkarsh and Placement tests, Squares Counting

Infinity 2k21 Division 1 (Unrated)

Marbles

Starters 48 Division 1 (Unrated)

Fill The Grid, Make Palindrome 2, Positive array

July Long Two 2022 Division 1 (Unrated)

Maximize Difference, Concat Sort, Chef in his Office, To Divide or Not To Divide, Sum of Product 1, Sum of Product 2, Insurance, Hungry Chef

Starters 49 Division 1 (Unrated)

High Frequency

Starters 51 Division 1 (Unrated)

Split N, Copy and Paste, Different Medians

Starters 61 Division 1 (Unrated)

Palindrome Partition, Weird Subarrays, Subarray Removal

Total Problems Solved: 239