Roberto

• Username: 2★rledesma
• Country:  Mexico
• Student/Professional:Student
• Institution:Universidad Nacional Autónoma de México
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

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No. of Contests Participated: 1

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1490? (-10)RatingProvisional
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September Cook-Off 2017(2017-09-18 00:00:00)

Global Rank:   632

Cheated in:   

Ratings System Update

(2017-09-18 00:00:00)

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1490? (-127)RatingProvisional
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September Cook-Off 2017(2022-12-20 00:00:00)

Global Rank:   632

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?

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Practice Paths (1)

Practice for ZCO and INOI

1%

Contests (1)

September Cook-Off 2017

Statistics Construction, Subsequence Equality

Total Problems Solved: 4