rahatutzaman rizon

• Username: 1★redwantamim525
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Mawlana Bhashani Science and Technology University
• CodeChef Pro Plan: No Active Plan. View Details

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

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No. of Contests Participated: 12

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871 (-14)RatingProvisional
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Starters 102 Division 4 (Rated)(2023-09-27 22:00:06)

Global Rank:   16377

Cheated in:   

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(2023-09-27 22:00:06)

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None(None)

Global Rank:   0

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Learning Paths (0)

Practice Paths (2)

Top SQL Interview Questions

6%

SQL Practice Queries

23%

Contests (12)

Starters 85 Division 4 (Rated)

Can Chef , IPL Ticket Rush

Starters 86 Division 4 (Rated)

Cricket Match, CodeChef Learn Problem Solving

Starters 87 Division 4 (Rated)

Four Tickets

Starters 83 Division 4 (Rated)

Couple Game

Starters 89 Division 4 (Rated)

Monopoly, Parliament

Starters 91 Division 4 (Rated)

Blobby Volley Scores, Bus Seat Numbering, Parking Charges

Starters 95 Division 4 (Rated)

Donation Drive

Starters 96 Division 4 (Rated)

AB Difference

Starters 98 Division 4 (Rated)

Messi vs Ronaldo

Starters 99 Division 4 (Rated)

Puzzle Hunt

Starters 100 Division 4 (Rated)

Air Quality Index, Trade Surplus

Starters 102 Division 4 (Rated)

Sports Section

August Long 2023 Division 4 (Unrated)

All New CodeChef, I Can Use Both Hands!

September Short 2023 Division 4 (Unrated)

Lucky Seven

SQL Contest (Unrated)

First Problem on SQL, Number of Distinct Institutes

Total Problems Solved: 268