Luis Callapa

• Username: 2★lushojsjs
• Country:  Bolivia
• Student/Professional:Student
• Institution:Rosa Gattorno La Paz, Bolivia
• 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: 22

Current Ratings Graph Old Ratings Graph

1551 (-10)RatingProvisional
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January Cook-Off 2022 Division 2(2022-01-23 22:30:02)

Global Rank:   3575

Cheated in:   

Ratings System Update

(2022-01-23 22:30:02)

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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1551 (-77)RatingProvisional
Rating i Provisional Rating, click to know more

January Cook-Off 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   3575

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 (22)

October Lunchtime 2019 Division 2

Counting Inversions Revisited, Khaled in HIT

November Lunchtime 2019 Division 2

Compress the List

December Challenge 2019 Division 2

Plus Multiply, That Is My Score!

December Lunchtime 2019 Division 2

Check Algorithm

February Challenge 2020 Division 2

School of Geometry

April Challenge 2020 Division 2

COVID Pandemic and Long Queue

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests

May Cook-Off 2020 Division 2

Chef and Recipe

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food

February Lunchtime 2020 Division 2

At the Gates

March Lunchtime 2020 Division 2 (Unrated)

Chef Swaps Digits

April Lunchtime 2020 Division 2

Another Birthday Present!, Chef in Fantasy League

May Lunchtime 2020 Division 2

Weird Walk, Lost Weekends

June Cook-Off 2020 Division 2

Cache Hits, Max Mex

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing

December Lunchtime 2020 Division 2 (Unrated)

One Zero Swaps, Three Letters, Sed Sequences

February Lunchtime 2021 Division 3

Daanish and Problems, Coprime Range

December Challenge 2021 Division 3 (Rated)

Check Mate, Valleys and Hills, Rock Paper Scissors, List of Lists, Utkarsh and Placement tests

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Even Subset Xor

January Long 2022 - I, Division 3 (Rated)

Covid Spread, Chef and Riffles, Prime in a binary string, Keplers Law

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization

CodeChef Starters 23 Division 2 (Unrated)

Average of Three, Subarray Mex, Maximising Vacations

February Long 2022 - I, Division 2 (Unrated)

Binary Base Basics, N Queens Puzzle Solved !

February Long 2022 - II, Division 2 (Unrated)

Avoid Fixed Points, Xor Palindrome

CodeChef Starters 26 Division 2 (Unrated)

Careless Chef, Control the Pollution

Total Problems Solved: 53