Lucas Dreyer

• Username: 5★luc4sdreyer
• Country:  South Africa
• Student/Professional:Professional
• Organisation:Oracle
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 22

Current Ratings Graph Old Ratings Graph

2025 (-49)RatingProvisional
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August Challenge 2020 Division 1(2020-08-17 15:00:00)

Global Rank:   1084

Cheated in:   

Ratings System Update

(2020-08-17 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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2025 (+238)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   1084

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 Challenge 2012

Fierce Battles

December Challenge 2014

XOR with Subset, Chef and Apple Trees

December Lunchtime 2014

Delivery Man

January Challenge 2015

Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

January Cook-Off 2015

Tojo hates probabilities, Suraj goes shopping

January Lunchtime 2015

Piece of cake, Candidate walk, Just multiply

February Challenge 2015

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

March Challenge 2015

Devu and his Class, Sign Wave, Chef and Notebooks, Count Substrings

April Cook-Off 2015

Version Control System

June Cook-Off 2015

Longest non regular parentheses sub-sequence, Strange operations

July Cook-Off 2015

Cops and the Thief Devu, Maximize Disjoint Pair Sum

March Lunchtime 2015

Saving a gift of love, Painting the Boxes, Chef Anup

April Challenge 2016

Chef and Ballons, Chef And Coloring, Chef And Magical Path, Devu and good strings, Help Watson Escape

May Challenge 2016

Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu

June Challenge 2016

Chef and New Game, Devu and an Array, Chef and cities, Chef and Coins Game, Chef and Array and K, Chef and Rectangle Array, Chef And The Hiring Event, Chef And Binary Operation

July Challenge 2016

Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and special numbers, Chef and Robots Competition, Chefland and Electricity, Scheduling jobs on a cluster

May Cook-Off 2016

Phantasialand

June Cook-Off 2016

Sticks, Right Triangle

April Challenge 2017

Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017

Chef and Battleship, Chef and his daily routine, Chef and Subsequences, Median of adjacent maximum numbers, Courses in an university, Chef and Sub Array , Blocked websites

June Challenge 2017

Pairwise union of sets, Triplets, Xenny and Coin Rankings, Chef and the Feast, A Good Set, Saboteur (Challenge), Chef and Prime Queries

February Challenge 2019 Division 1

Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Art of Balance

August Challenge 2020 Division 1

Smallest KMP

June Challenge 2021 Division 2 (Unrated)

Bitwise Tuples, Bella ciao, Summer Heat

Total Problems Solved: 92