Lav Joshi

• Username: 4★binary_matrix
• Country:  India
• Student/Professional:Student
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 17

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CodeChef Starters 17 Division 2 (Rated)(2021-11-17 23:00:02)

Global Rank:   14

Cheated in:   

Ratings System Update

(2021-11-17 23:00:02)

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1841 (-218)RatingProvisional
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CodeChef Starters 17 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   14

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 (17)

March Challenge 2020 Division 2

Ada Bishop 2, XOR Engine, Pintu and Fruits

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Ready Bitwise, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Triple Sort, Coronavirus Spread, Isolation Centers

March Cook-Off 2020 Division 2

Find Your Gift

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests

May Cook-Off 2020 Division 2

Chef, Chefina and Their Friendship, Chef and Recipe

March Lunchtime 2020 Division 2 (Unrated)

Chef Swaps Digits, Good Prefix

April Lunchtime 2020 Division 2

Another Birthday Present!, Chef in Fantasy League

May Lunchtime 2020 Division 2

Weird Walk, Convert the String, Lost Weekends

June Challenge 2020 Division 2

Even Matrix, Chef and Price Control, Chef and String, Covid Sampling (Challenge), Chef and Icecream, The Tom and Jerry Game!

July Challenge 2020 Division 2

Chef and Strings, Chefina and Swaps, Chef and Card Game, Missing a Point, Ada King, Doctor Chef

September Challenge 2020 Division 2

Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2

July Cook-Off 2020 Division 2

Even-tual Reduction, OR-thodox Distinction

August Lunchtime 2020 Division 1

Game on a Strip

June Cook-Off 2020 Division 2

Cache Hits, Max Mex

June Lunchtime 2020 Division 2

Increasing Decreasing, Chef and Demonetisation

October Challenge 2020 Division 1

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

CodeChef Starters 17 Division 2 (Rated)

Binary Inversion, GCD of Prefixes, String Game, Partition It, Find the Special Node, New Piece

CodeChef Starters 18 Division 1 (Unrated)

Palindromic Binary Numbers, Expectations on a Permutation, Compare those strings

CodeChef Starters 21 Division 1 (Unrated)

ChefWM, And Or Union

Total Problems Solved: 96