Aman Ahmed N S

• Username: 4★alien8
• Country:  India
• Student/Professional:Student
• Institution:Birla Institute of Technology & Science Pilani, Goa Campus
• 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: 30

Current Ratings Graph Old Ratings Graph

1817 (+38)RatingProvisional
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January Lunchtime 2022 Division 2(2022-01-29 23:00:02)

Global Rank:   523

Cheated in:   

Ratings System Update

(2022-01-29 23:00:02)

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1817 (-163)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   523

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 (30)

April Challenge 2020 Division 2

Unit GCD, Strange Number, COVID Pandemic and Long Queue, Sell All the Cars

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

April Cook-Off 2020 Division 2

Lift Requests

May Cook-Off 2020 Division 2

Chef and Recipe

April Lunchtime 2020 Division 2

Chef in Fantasy League

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

September Challenge 2020 Division 2

A Problem on Sticks, Ada Matrix, Coronavirus Spread 2

July Cook-Off 2020 Division 2

Even-tual Reduction

RECode 12.0 (Rated for all)

Chef and String

October Challenge 2020 Division 2

Chef and Easy Queries, Covid Run, Positive AND, Replace for X

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes, Iron, Magnet and Wall

December Cook-Off 2020 Division 2

Self-Destructing Strings, Catch the Thief, Minimum Attendance Requirement

January Cook-Off 2021 Division 2

Maximise Islands, Prime Tuples

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences, One Zero Swaps

January Lunchtime 2021 Division 2 (Unrated)

Binary Subsequence, Even Differences, Even Sum

October Cook-Off 2020 Division 2

Split the Str Ing, Decreasing Srrnmieeda

October Lunchtime 2020 Division 2

AND Plus OR

September Lunchtime 2020 Division 2

Watermelon, GCD operations

Byterace IIT Patna Division 2 (Rated)

Cybalphabit, The Begining Era Of Cyberverse

March Cook-Off 2021 Division 2

Matrix XOR, Guess the Number

March CodeChef Starters 2021 Division 3 (Rated)

Possible Victory, Nobel Prize, Server Trouble, College Life 5, Point Grid

May Cook-Off 2021 Division 2

The Last Problem

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components

May Challenge 2021 Division 2 (Rated)

Xor Equality, Tic Tac Toe, Modular Equation

June Cook-Off 2021 Division 2

Binary String on Steroids, The Wave

June Lunchtime 2021 Division 2

From Rational to Binary, False Number, Unpleasant Ones

July Lunchtime 2021 Division 2

Beautiful Pairs, Array Rotation Returns

August Cook-Off 2021 Division 2

Equal Difference, Clear the Array, Chef and Closure, Different String, Odd Array

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility , Merged LIS

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

Total Problems Solved: 92