Zahid Hasan Ebu

• Username: 3★sleep__mode
• Country:  Bangladesh
• Student/Professional:Student
• Institution:University of Rajshahi Bangladesh
• 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: 5

Current Ratings Graph Old Ratings Graph

1774 (+70)RatingProvisional
Rating i Provisional Rating, click to know more

January Cook-Off 2021 Division 2(2021-01-25 00:30:02)

Global Rank:   392

Cheated in:   

Ratings System Update

(2021-01-25 00:30:02)

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?

1774 (-86)RatingProvisional
Rating i Provisional Rating, click to know more

January Cook-Off 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   392

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)

None

Practice Paths (0)

None

Contests (5)

July Challenge 2019 Division 2

Chef and Mean , Minimum and Maximum

January Challenge 2021 Division 2

Watching CPL, Fair Elections

December Challenge 2020 Division 2

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

January Cook-Off 2021 Division 2

Maximise Islands, Prime Tuples

December Lunchtime 2020 Division 2 (Unrated)

Three Letters, Sed Sequences, Horoscope Matrix

UWCOI 2021 (Rated for all)

Array Swaps, Hidden Numbers

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

Total Problems Solved: 24