ranjan kumar

• Username: 3★ranjan11556
• Country:  India
• Student/Professional:Student
• Institution:Jadavpur University Kolkata, West Bengal, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 21

Current Ratings Graph Old Ratings Graph

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March Lunchtime 2021 Division 2(2021-03-27 22:30:02)

Global Rank:   1179

Cheated in:   

Ratings System Update

(2021-03-27 22:30:02)

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March Lunchtime 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   1179

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 (21)

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Chef and calculation, Faded Palindromes

October Challenge 2016

Chef and Three Dogs

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior

February Challenge 2017

Chef and Triangles, Chef and His Apartment Dues

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix

February Lunchtime 2017

Bear and Milky Cookies

September Challenge 2017

Minimum Good Permutation, Little Chef and Sums, Chef and Pick Digit

October Lunchtime 2017

Buggy Calculator

December Lunchtime 2017

Days in Month, Strange Function

January Challenge 2018

K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

January Cook-Off 2018

Survive in ChocoLand

March Lunchtime 2018 Division 2 (Unrated)

Chef and Friends, Magic Elements

September Challenge 2019 Division 2

Chef and Good Subsequences, Easy Fibonacci, Chef and Interesting Subsequences

February Lunchtime 2020 Division 2

At the Gates, Not All Flavours

May Lunchtime 2020 Division 2

Weird Walk, Lost Weekends

June Challenge 2020 Division 2

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

September Challenge 2020 Division 2

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

August Lunchtime 2020 Division 2

Game on a Strip, Mode of Frequencies

March Lunchtime 2021 Division 2

Dinner by Candlelight, Racing, Lunchtime

Total Problems Solved: 60