Jay Kumar Thakur

• Username: 5★leaf_node
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur 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: 34

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2027 (-18)RatingProvisional
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Starters 169 (Rated till 5 stars)(2025-01-15 22:00:00)

Global Rank:   151

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Starters 69 Division 1 (Rated till 6-stars)(2022-12-20 00:00:00)

Global Rank:   143

Cheated in:   

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(2022-12-20 00:00:00)

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Contests (34)

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

June Cook-Off 2022 Division 4 (Rated)

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

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 3 (Rated)

Full Path Eraser, Expected move, Reduce to zero, Subscriptions, Divisible by i , Possible GCD, Alternate Additions, Equal Strings

Starters 43 Division 3 (Rated)

Make them Equal, The Optimal Pairs, Permutation AND, DNA Storage, Distinct Palindrome, Joining Date

June Lunchtime 2022 Division 2 (Rated)

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

Starters 45 Division 2 (Rated)

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

Starters 46 Division 2 (Rated)

Vowel Anxiety, Array sorting, Sort the String

Starters 47 Division 2 (Rated)

Copy and Push Back, Similar Heights, End Sorted

July Lunchtime 2022 Division 1 (Rated)

Inversions Retrieval, Tree Retrieval, Consecutive XOR, Largest Family

Starters 64 Division 1 (Rated till 5-stars)

Luigi and Uniformity, Prime Factor Division, Distinct Neighbours

Starters 67 Division 1 (Rated till 5-stars)

Maximum Angriness, Musical Rods, Existence Of X

Starters 69 Division 1 (Rated till 6-stars)

Distinct Sequence

Starters 71 Division 1 (Unrated)

Flip the Prefix, Maximizing LCS

Starters 90 Division 1 (Rated till 6 Stars)

Crushed Apples and a Balance Scale, Minimum Ugliness, Sum of Goodness, Printing Binary Array, Anti Palindrome

Starters 93 Division 1 (Rated for All)

NASA, Bloodline

Starters 94 Division 1 (Rated till 5 Stars)

Possible or Not, The Vowel Matrix

Starters 96 Division 1 (Rated till 5 Stars)

Swap the numbers, Mex Array

Starters 102 Division 1 (Rated till 6 Stars)

Chess ELO, Parity Permutation, Light The Bulb, Chef Segment, Bit Play

Starters 104 Division 1 (Rated till 6 Stars)

Lexicographically Largest , Construct An Array, Maximise Sum

Starters 111 Division 1 (Rated till 6 Stars)

LCM Mania, Prefixing, Prime Range Game, Beautiful Strings

Starters 112 Divison 1 (Rated till 6 Stars)

Cursed Indices, 3 Logicians Walk into a Bar, Yet Another Array Game, Permutation Construction

Starters 113 Division 1 (Rated)

Count Distinct Arrays, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score

Starters 115 Division 1 (Rated)

Greedy LIS Algorithm, Binary Grid Forces

Starters 116 Divison 1 (Rated till 6-Stars)

Chef Product, ORST , Exact Savings

Starters 119 Division 1 (Rated till 6-Stars)

K Odd Sum, Unalike Gcd & Lcm

Starters 120 Division 1 (Rated till 6 Stars)

Find Permutation , Construct Permutation, Count Subarrays, Count Arrays

Starters 132 Division 1 (Rated till 6 Stars)

ALIEN-OR, Optimal Flip, Prime Query

Starters 143 Division 1 (Rated till 5-Stars)

Non-Divisor Array, Max Min and Length, Spread of Ratism

Starters 146 Division 1 (Rated till 5 stars)

Bouncing Ball, Permutation Construction

Starters 147 Division 1 (Rated till 5 stars)

Truth Teller And Liars 101, Independence Day 101, Non-Primes 101, Gold Coins 101

Starters 155 (Rated till 5 stars)

GCD to 1 (Hard), Replace With First, Prefix Suffix Min Max

Starters 167 (Rated till 5 stars)

Temperature Balance, Lottery Tickets, Grid Construction (Even), Grid Construction (Odd)

Starters 168 (Rated till 6 stars)

No Two Alike, Binary Removals, Equate XOR

Starters 169 (Rated till 5 stars)

Constant Subsequence, Hamming equivalent

Total Problems Solved: 156