Aman kumar

• Username: 4★apcode15
• Country:  India
• Student/Professional:Student
• Institution:Institute of Engineering and Technology, Lucknow Uttar Pradesh, 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)

Rating Graph

No. of Contests Participated: 32

Current Ratings Graph Old Ratings Graph

1928 (-15)RatingProvisional
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Starters 55 Division 2 (Rated)(2022-09-07 23:00:02)

Global Rank:   653

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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1928 (+14)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   653

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 (32)

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, ChefWM

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Equal LIS

Infinity 2k21 Division 3 (Rated)

Marbles, The Squid Game, Red Light, Green Light

Code Drive Division 2 (Rated)

Sum this up, Again XOR problem, Count Number of Peaks

January Long 2022 - II, Division 2 (Unrated)

Crying Colours

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility

CodeChef Starters 23 Division 2 (Unrated)

Average of Three, Subarray Mex

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Equal MEX, K Distinct Array, Points and Lines

February Cook-Off 2022 Division 2

Perfect Permutation, PerMEXuation , Prefix Permutation

CodeChef Starters 26 Division 2 (Unrated)

Careless Chef, Control the Pollution

CodeChef Starters 27 Division 2 (Rated)

String Reverse, Distinct Binary Strings, The product mystery

February Lunchtime 2022 Division 2

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

CodeChef Starters 28 Division 2 (Rated)

Permutation Xority, Count the Holidays

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array, Decomposition Reaction

March Cook-Off 2022 Division 2

Fixed Weight, Janmansh at Fruit Market, Equal Mex Splitting, Alternating Divisibility

March Lunchtime 2022 Division 2

Sad Splits, Adjacency Love

Starters 36 Division 2 (Rated)

Buying Sweets, Presents for Cheffina

May Cook-Off 2022 Division 2 (Rated)

Different Subarrays Rearrange, Doubled Distances, Triple Inversions

Starters 38 Division 2 (Rated)

Good Pairs, Average Gift, Circular Track

May Lunchtime 2022 Division 2 (Rated)

Bucket and Water Flow , Maximum Pairwise Modular Sum, Equal After And

Starters 39 Division 2 (Rated)

Compress the Video, Crazy Substrings, Closest Vowels, Even Subarray XOR

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

Starters 41 Division 2 (Rated)

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

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick

Starters 42 Division 2 (Rated)

Minimum or Maximum, Divisible by 3

Starters 44 Division 2 (Rated)

Atleast and Atmost, Triple Xor, Dense Bracket Sequence

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, Vowel Anxiety, Sort the String

Starters 47 Division 2 (Rated)

Copy and Push Back, Similar Heights, End Sorted

August Lunchtime 2022 Division 2 (Rated)

Easy Permutation, Array Equality, Tree Coloring, Subtract 12 Operation

Starters 53 Division 2 (Rated)

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

Starters 54 Division 2 (Unrated)

Equal Distinct

Starters 55 Division 2 (Rated)

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

Total Problems Solved: 150