Leo Yu

• Username: 5★leoyu
• Student/Professional:Student
• 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: 3

Current Ratings Graph Old Ratings Graph

2011? (-260)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2014(2014-07-14 15:00:00)

Global Rank:   2769

Cheated in:   

Ratings System Update

(2014-07-14 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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2011? (+182)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   2769

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 (3)

May Challenge 2014

Sereja and Game, Compilers and Parsers, Dynamic Trees and Queries, Chef-jumping, Fun with AGp, Sereja and Subsegment Increasings, Chef and Strange Matrix, Stone, Little Elephant and Balloons

June Challenge 2014

Maxim and Progressions, Forgot Password, Guessing Game, Two Companies, Sereja and Arcs, Chef and Subarray, Chef and Digit Jumps, Chef and Functions, Little Elephant and Blocks

July Challenge 2014

Count Substrings, Reach The Point

Total Problems Solved: 21