Devansh Halwai

• Username: 2★lostcoder05
• Country:  India
• Student/Professional:Student
• Institution:Heritage Institute of Technology, Kolkata
• 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: 19

Current Ratings Graph Old Ratings Graph

1546 (-53)RatingProvisional
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April Cook-Off 2022 Division 2(2022-04-02 22:30:02)

Global Rank:   1887

Cheated in:   

Ratings System Update

(2022-04-02 22:30:02)

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1546 (+42)RatingProvisional
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April Cook-Off 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   1887

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 (19)

May Challenge 2020 Division 2

Coronavirus Spread, Chef and Bitwise Product, Isolation Centers, Triple Sort

April Lunchtime 2020 Division 2

Chef in Fantasy League

May Lunchtime 2020 Division 2

Weird Walk, Convert the String, Lost Weekends, Tree difference

June Challenge 2020 Division 1

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

July Challenge 2020 Division 1

Missing a Point

August Challenge 2020 Division 2

Chef and Wedding Arrangements, Smallest KMP, Another Card Game Problem, Chef Wars - Return of the Jedi, Chef and Linear Chess

September Challenge 2020 Division 2

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

July Lunchtime 2020 Division 2

Chef and Steps, Binary Concatenation

August Cook-Off 2020 Division 2

K-Foldable String, Chef and Work, Polygon Relationship

RECode 12.0 (Rated for all)

Chef and String, Chef and Numbers

October Challenge 2020 Division 2

Positive AND, Covid Run, Chef and Easy Queries

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes

October Cook-Off 2020 Division 2

Split the Str Ing

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates

October Lunchtime 2020 Division 2

AND Plus OR

Total Problems Solved: 57