Sumit Patel

• Username: 4★r_ider
• 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: 34

Current Ratings Graph Old Ratings Graph

1986 (-7)RatingProvisional
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Starters 153 (Rated)(2024-09-25 22:00:02)

Global Rank:   458

Cheated in:   

Ratings System Update

(2024-09-25 22:00:02)

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1814 (+33)RatingProvisional
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Starters 56 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   418

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 (34)

May Long One 2022 Division 4 (Rated)

Pushpa , Sugarcane Juice Business, The Attack of Queen, Football Cup, Miami GP

May Long Two 2022 Division 4 (Rated)

Practice makes us perfect, Subsequence-Numbers Divisible by 7, Xor Palindrome, Score High, Total Prize Money, Make them Zero, Degree of Polynomial

Starters 40 Division 4 (Unrated)

Difficulty Rating Order, Infinity Staircase, Doubt Support Availability, Good Pairs, Whatsapp Messages, Take discount or Not

June Cook-Off 2022 Division 4 (Rated)

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

Starters 42 Division 3 (Rated)

Minimum or Maximum, Divisible by 3, How Many Maximums, Minimum number of Flips

June Long One 2022 Division 3 (Rated)

Reduce to zero, Subscriptions, Divisible by i , Possible GCD, Alternate Additions, Equal Strings

Starters 43 Division 3 (Rated)

DNA Storage, Distinct Palindrome, Joining Date

June Long Two 2022 Division 3 (Rated)

Count the ACs, Make all equal using Pairs, Complementary Strand in a DNA, Reversal Sorting

August Long 2022 Division 3 (Rated)

Angled Flip, Tree of Trees, Sale Season, XOR with smallest element, Hello Equation, Two Trains, Make A and B equal, Crazy Subsequences

Starters 53 Division 2 (Rated)

Black&White Ring Game, Make A and B equal, Queen Blocks

Starters 56 Division 2 (Rated)

K-Subarrays, Binary Substitution, Maximize Colours

Starters 88 Division 2 (Rated)

Maximum And Or, Chef and Asteroids, Unstable Subarray

Starters 89 Division 2 (Rated)

Plus 2 or Minus 1, Positive or Negative Subarrays, Subarray Removal

Starters 90 Division 2 (Rated)

Crushed Apples and a Balance Scale, Printing Binary Array, Anti Palindrome

Starters 91 Division 2 (Rated)

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

Starters 92 Division 2 (Rated)

Rectangular Tiling, Distance Coloring, Dotify Playlist

Starters 93 Division 2 (Rated)

Break Free, Greedy, Problem

Starters 94 Division 2 (Rated)

CodeChef Streak, Possible or Not, Search for 404, The Vowel Matrix

Starters 95 Division 2 (Rated)

Boxes, Transfusion Chain, EVacuate to Moon

Starters 96 Division 2 (Rated)

Swap the numbers, Mex Array, Remove Multiples

Starters 97 Division 2 (Rated)

Schrodinger Smiley, No Palindrome, Triplets Min

Starters 98 Division 2 (Rated)

3-Blast Palindrome, Airport Management, Ball Distribution

Starters 118 Division 2 (Rated)

Subset GCD, Join States, Xorry 2, Xorry 1

Starters 119 Division 2 (Rated)

Cookie Day, Another Good String , K Odd Sum

Starters 120 Division 2 (Rated)

Find Permutation , Construct Permutation, Count Subarrays, Count Arrays, Sub or Swp

Starters 123 Division 1 (Rated till 6-Stars)

Minimum And Maximum I, Yet Another Alice Bob Game, Minimum And Maximum II

Starters 125 Division 1 (Rated till 6-Stars)

Bucket Game, Binary Minimal

Starters 126 Division 2 (Rated)

Tree Distance Set, Freedom, Permutation Disturbance

Starters 127 Division 2

ABC Conjecture, Superincreasing, Anti-Triangle

Starters 145 Division 1 (Rated till 6-Stars)

Make Bob Win

Starters 146 Division 2 (Rated till 5 stars)

Bouncing Ball, Permutation Construction, Knockout tournament

Starters 148 Division 2 (Rated)

Double Trouble, FightBots

Starters 150 (Rated)

Equal Pairs (Hard), Find Multiset State, Equal Pairs (Easy)

Starters 152 (Rated)

Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries, Range Minimize

Starters 153 (Rated)

Butterfly, Another Game, Colorful Tree (Easy Version), Xometry (Easy Version)

Total Problems Solved: 166