Andreas

• Username: 4★andreas_a
• Country:  Germany
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 17

Current Ratings Graph Old Ratings Graph

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February Challenge 2021 Division 2(2021-02-15 15:00:02)

Global Rank:   3311

Cheated in:   

Ratings System Update

(2021-02-15 15:00:02)

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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1829 (-5)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   3311

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 (17)

June Lunchtime 2019 Division 2

Magda and Silly Pairs, Ping Paja Pong

July Challenge 2019 Division 2

Guess the Prime!, Parity Again, Codechef War, Circular Merging, (Challenge) Codechef War II, Minimum and Maximum, Chef and Mean , Hit the Coconuts

July Lunchtime 2019 Division 1 (Unrated)

Professor on a Trip, Two-lane Road

August Challenge 2019 Division 1

Guddu and his Mother, Dilemma, Maximize an Expression

September Challenge 2019 Division 1

Chef Designed a Network

October Challenge 2019 Division 1

Even Edges, Array Modification, Chef and Maximum Star Value

October Lunchtime 2019 Division 1 (Unrated)

Box Game

November Challenge 2019 Division 1

Physical Exercise, From Zero to Infinity, (Challenge) Coloring Triangulations

February Challenge 2020 Division 1

No Change Required, (Challenge) Raisins

Biteration #2 (Rated for Division 2)

A - Books

September Challenge 2020 Division 1

Chefina and Swap, Find XOR, Ada Matrix

November Challenge 2020 Division 2

Iron, Magnet and Wall, Restore Sequence, Ada and Dishes

January Challenge 2021 Division 2

Chef and Ants, Expected Number of SCCs, Stack-Queue Sort (Challenge), Watching CPL, Fair Elections, Chef and Division 3, Encoded String

December Challenge 2020 Division 2

Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

December Cook-Off 2020 Division 1

Self-Destructing Strings

December Lunchtime 2020 Division 2 (Unrated)

One Zero Swaps, Sed Sequences, Horoscope Matrix, Three Letters

January Lunchtime 2021 Division 2 (Unrated)

Good Grid, Binary Subsequence, Even Differences, Even Sum

UWCOI 2021 (Rated for all)

Array Swaps, Hidden Numbers

Byterace IIT Patna Division 2 (Rated)

Angry Cyborg, The Begining Era Of Cyberverse, Cybalphabit, Batteries Needed!

February Challenge 2021 Division 2

Frog Sort, Team Name, Maximise Function

Total Problems Solved: 71