Siddharth Jain

• Username: 2★luka_13
• Country:  India
• Student/Professional:Student
• Institution:Birla Institute of Technology Mesra Ranchi, Jharkhand, India
• 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: 24

Current Ratings Graph Old Ratings Graph

1573 (-37)RatingProvisional
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January Challenge 2017(2017-01-18 15:00:00)

Global Rank:   5790

Cheated in:   

Ratings System Update

(2017-01-18 15:00:00)

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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1573 (+64)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2017(2022-12-20 00:00:00)

Global Rank:   5790

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 (24)

October Challenge 2013

Maxim and Dividers, Helping Lira

November Challenge 2013

Uncle Johny, Square Digit Squares, Missing some chairs

December Challenge 2013

Magic Pairs

January Challenge 2014

Please like me, Chef and Feedback

March Cook-Off 2014

Dividing Stamps

April Cook-Off 2014

Snape and Ladder

October Cook-Off 2014

The Army, Walk on the Axis

February Challenge 2014

Little Elephant and Subarrays, Longest Common Pattern

March Challenge 2014

Team Split, Walk, Little Chef and Numbers

April Challenge 2014

Sereja and Permutation, Counting Matrices, Farmer Feb, Chef and Digits, Shortest Path in Binary Trees

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Subarray, Forgot Password, Guessing Game

October Challenge 2014

Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

February Challenge 2015

Let us play with rank list, Chef and Equality, Chef and Strange Formula, Chef and Chain

April Challenge 2015

Chef and Interview, Broken Telephone, Chef and Piano Scales

May Challenge 2015

Chef and Prime Divisors, Set Difference , Chef and new recipe

April Cook-Off 2015

Equality, Version Control System

May Cook-Off 2015

Devu and friendship testing

May Lunchtime 2015

Devu and Grapes

Total Problems Solved: 98