Rafael Herman Yosef

• Username: 4★rapel
• Country:  Indonesia
• Student/Professional:Student
• Institution:Binus University Jakarta Indonesia
• 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: 6

Current Ratings Graph Old Ratings Graph

1953 (-45)RatingProvisional
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September Challenge 2019 Division 1(2019-09-16 15:00:00)

Global Rank:   404

Cheated in:   

Ratings System Update

(2019-09-16 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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1953 (-69)RatingProvisional
Rating i Provisional Rating, click to know more

September Challenge 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   404

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 (6)

May Challenge 2017

Long Sandwich

September Challenge 2018 Division 2

Magician versus Chef, War of XORs, Chef and Adventures, Bad Shuffle

February Challenge 2019 Division 2

Chef and Secret Ingredients, Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Magical Jars, Guess It Right, Manhattan Rectangle

July Challenge 2019 Division 2

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

August Challenge 2019 Division 1

Guddu and his Mother, Encoding, Dilemma, Maximize an Expression, Chef and Gordon Ramsay

September Challenge 2019 Division 1

Fuzzy Linear Combinations, Chef Designed a Network

Total Problems Solved: 35