lost time, day and night

• Username: 3★roosephu
• Student/Professional:Student
• Institution:Tsinghua University
• 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: 7

Current Ratings Graph Old Ratings Graph

1645 (-78)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2014(2014-01-13 15:00:00)

Global Rank:   3548

Cheated in:   

Ratings System Update

(2014-01-13 15:00:00)

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?

1645 (+176)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2014(2022-12-20 00:00:00)

Global Rank:   3548

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 (7)

September Challenge 2012

Lights, Kisses & Hugs, Chef World, Racing Horses, Queries About Numbers, ChefTown Parade, Annual Parade, Three is Crowd, Simultaneous Nim

October Challenge 2012

Need More Diamonds, The New Scheme, Event Organizer, Fierce Battles, Little Elephant and Order

January Challenge 2013

The Minimum Number Of Moves, Three Different Numbers

May Challenge 2013

Tree Counting, Password Cracking Challenge, Juno Puzzle for May

June Challenge 2013

Dessert Wizard, Count Special Matrices, Predictopus, To challenge or not, W String, Lapindromes

January Challenge 2014

Sereja and Graph

Total Problems Solved: 33