Vachan siddharth

• Username: 3★vachan_sid
• 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 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 29

Current Ratings Graph Old Ratings Graph

1655 (-36)RatingProvisional
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Starters 100 Division 2 (Rated)(2023-09-13 22:00:02)

Global Rank:   1258

Cheated in:   

Ratings System Update

(2023-09-13 22:00:02)

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1753 (-8)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 68 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   574

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 (29)

December Cook-Off 2021 Division 3

Friends Meetup, Musical Chairs, Two Rooks

December Lunchtime 2021 Division 3

Chef and Vacation Transportation , Chef Loves 1010, Maximum Trio, Romantic Reversals

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, ChefWM, And Or Union

Infinity 2k21 Division 3 (Rated)

Marbles, The Squid Game, Red Light, Green Light

Code Drive Division 2 (Rated)

Again XOR problem

Exun 2021-22 Division 2 (Rated)

Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array

CodeChef Starters 34 Division 4 (Rated)

Is the Score Consistent, Good Quality Bulbs, Expiring Bread

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Segmentation Fault, Xor Permutation

Starters 41 Division 4 (Rated)

Equal Integers, Chef and Brain Speed, Chef and Chocolates, Is this priority or parity!, Path Parity, Determine the Winner

June Cook-Off 2022 Division 4 (Rated)

First and Last, Break the Stick, Playlist, Rating Improvement, Simple XOR

Starters 42 Division 4 (Rated)

Minimum or Maximum, Divisible by 3, How Many Maximums, Age Limit, Equal Distribution, Minimum number of Flips

June Long One 2022 Division 4 (Rated)

Equal Strings, Alternate Additions, Possible GCD, Divisible by i , Chairs Requirement, Subscriptions, Expected move, Reduce to zero

Starters 44 Division 2 (Rated)

Atleast and Atmost, Dense Bracket Sequence

Starters 43 Division 4 (Rated)

The Optimal Pairs, Burgers, DNA Storage, Distinct Palindrome, Joining Date, Waiting Time

June Lunchtime 2022 Division 3 (Rated)

XOR Times 2 Is Sum, Equal by XORing, Too many Floors, The Lost Array, Zero Ones Equal One Zeros

Starters 45 Division 2 (Rated)

Even Equal Odd, Xor and Multiply, KBG and GN-Theory, Retrieve the Array, Adjacent Sum Parity

Starters 46 Division 2 (Rated)

Prime Xor, Array sorting, Sort the String

Starters 47 Division 2 (Rated)

End Sorted, Similar Heights, Copy and Push Back

Starters 48 Division 2 (Rated)

Fill The Grid, Make Palindrome 2, Positive array

Starters 49 Division 2 (Rated)

Split The String, High Frequency, Monks, Valid Minimum

Starters 50 Division 2 (Rated)

Permutation GCD, Sum Product Segments, Average Permutation

Starters 68 Division 2 (Rated)

XOR Product, Make Money, Expense List, Boring String

Starters 70 Division 2 (Rated)

Minimum distance between 1s, Prime Reversal, Frequency Array Retrieval

Starters 91 Division 2 (Rated)

Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Maximum Sum Permutation

Starters 92 Division 2 (Rated)

Dotify Playlist

Starters 95 Division 2 (Rated)

Transfusion Chain, EVacuate to Moon

Total Problems Solved: 112