Amit Kumar

• Username: 4★iam47
• Country:  India
• Student/Professional:Student
• Institution:Academy of Technology Kolkata, West Bengal, India
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

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No. of Contests Participated: 28

Current Ratings Graph Old Ratings Graph

1848 (+36)RatingProvisional
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Starters 55 Division 2 (Rated)(2022-09-07 23:00:02)

Global Rank:   260

Cheated in:   

Ratings System Update

(2022-09-07 23:00:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1848 (-37)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 55 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   260

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?

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Contests (28)

CodeChef Starters 21 Division 2 (Rated)

And Or Union, Akash and Grid

CodeChef Starters 22 Division 2 (Rated)

Even Subset Xor, Equal LIS, An Interesting Sequence

Infinity 2k21 Division 3 (Rated)

Marbles, The Squid Game, Red Light, Green Light

Code Drive Division 3 (Rated)

Sum this up, Again XOR problem, Game between friends, Count Number of Peaks, Favourite String of Chef

January Long 2022 - I, Division 2 (Unrated)

Prime in a binary string

Exun 2021-22 Division 2 (Rated)

Sarthak and his Magic Grid, Vedant and his Hidden Array

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Merged LIS

CodeChef Starters 23 Division 2 (Unrated)

Average of Three, Subarray Mex, Maximising Vacations

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Yet Another Constructive Problem

February Long 2022 - I, Division 2 (Unrated)

Binary Base Basics, N Queens Puzzle Solved !

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Equal MEX, Points and Lines

February Cook-Off 2022 Division 2

Perfect Permutation, Prefix Permutation

February Long 2022 - II, Division 2 (Unrated)

Avoid Fixed Points, Xor Palindrome

CodeChef Starters 27 Division 2 (Rated)

Distinct Binary Strings, The product mystery

February Lunchtime 2022 Division 2

Magnet Sort, Parallel Processing, Four Equidistant Points on a Grid

CodeChef Starters 30 Division 2 (Rated)

Minimum Coloring, Gift Shop and Coupon, Balanced Reversals

CodeChef Starters 32 Division 2 (Rated)

Maximize the Minimum, Finding Shoes, Flip Sorting

CodeChef Starters 33 Division 2 (Rated)

Distinct Dilemma, Broken Life, Non Adjacent Flips, Make Them Equal

Starters 35 Division 2 (Rated)

Jump to Sibling, Admins and Shopping, Dark Light, Chef Find XOR Beautiful

Starters 38 Division 2 (Rated)

Circular Track, Good Pairs

May Lunchtime 2022 Division 2 (Rated)

Bucket and Water Flow , Maximum Pairwise Modular Sum

Starters 39 Division 2 (Rated)

Compress the Video, Closest Vowels, Even Subarray XOR

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median

Starters 41 Division 2 (Rated)

Path Parity, Is this priority or parity!, Remove and Add, Equal Integers

June Long One 2022 Division 2 (Unrated)

Divisible by i , Possible GCD, Alternate Additions, Equal Strings

Starters 43 Division 2 (Rated)

Distinct Palindrome

June Lunchtime 2022 Division 2 (Rated)

Zero Ones Equal One Zeros, Equal by XORing

June Long Two 2022 Division 3 (Rated)

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

Starters 46 Division 3 (Rated)

Prime Xor, Vowel Anxiety, Array sorting, Sort the String, MATH1 Enrolment, Group Assignment, Army Training

Starters 47 Division 2 (Rated)

Similar Heights, End Sorted, Copy and Push Back

August Long 2022 Division 2 (Unrated)

Two Trains

August Lunchtime 2022 Division 2 (Rated)

Easy Permutation, Array Equality

Starters 53 Division 2 (Rated)

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

Starters 55 Division 2 (Rated)

Non Zero Xor, Balls and Boxes, Mean and Median, OR Tuples

Total Problems Solved: 111