Decoder

• Username: 1★decoder30
• Country:  Israel
• Student/Professional:Student
• Institution:Allameh Helli High Schools Tehran, Ghaffari, Iran
• 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: 28

Current Ratings Graph Old Ratings Graph

1079 (+130)RatingProvisional
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August Lunchtime 2021 Division 3(2021-08-28 22:30:04)

Global Rank:   1823

Cheated in:   

Ratings System Update

(2021-08-28 22:30:04)

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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1079 (-46)RatingProvisional
Rating i Provisional Rating, click to know more

August Lunchtime 2021 Division 3(2022-12-20 00:00:00)

Global Rank:   1823

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 (28)

November Challenge 2018 Division 2

Chef and Difficult Contests, Chef and Ridges

October Challenge 2018 Division 2

Byte to Bit, Chef and Serves

December Lunchtime 2018 Division 2

Choosing from Buckets

January Challenge 2019 Division 2

Different Neighbours

January Cook-Off 2019 Division 2

Ada King

January Lunchtime 2019 Division 2

Rooks, The Nights Watch

February Challenge 2019 Division 2

Art of Balance, Appy and Contest, Chef and Magical Jars, Guess It Right

February Cook-Off 2019 Division 2

Max Range Queries, Chef and Secret Password, Buying New Tablet, Chef and Party

February Lunchtime 2019 Division 2

Average Number

March Challenge 2019 Division 2

Chef and Number Game, Chef and a Beautiful Digit

April Cook-Off 2019 Division 2

Chef Learning Hungarian Algorithm

April Lunchtime 2019 Division 2

Minimum Sum, Attendance, Fast Food

May Challenge 2019 Division 2

Reduce to One, Where to Build the Roads

June Challenge 2019 Division 2

Road Signs, Guddu on a Date, Chef and Ingredients

June Lunchtime 2019 Division 2

Ping Paja Pong, Magda and Silly Pairs

August Challenge 2019 Division 2

Guddu and his Mother, Encoding

October Challenge 2020 Division 2

Adding Squares

October Cook-Off 2020 Division 2

Split the Str Ing, Path-etic Sums, Decreasing Srrnmieeda

March Lunchtime 2021 Division 3

Dinner by Candlelight, Racing

July Cook-Off 2021 Division 3

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 3

Beautiful Pairs, Red Alert

August Lunchtime 2021 Division 3

K-th Maximum, Crossing Blocks, Just a Graph

Total Problems Solved: 53