Md Osama Ansari

• Username: 4★charigardash
• Country:  India
• Student/Professional:Professional
• Organisation:Samsung R&D Institute
• 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: 6

Current Ratings Graph Old Ratings Graph

1864 (+12)RatingProvisional
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December Challenge 2020 Division 1(2020-12-14 15:00:00)

Global Rank:   457

Cheated in:   

Ratings System Update

(2020-12-14 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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1864 (-72)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   457

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 (6)

May Challenge 2020 Division 2

Isolation Centers, Coronavirus Spread

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Operations on a Tuple, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control

July Challenge 2020 Division 2

Chef and Strings, Chef and Card Game, Doctor Chef, Missing a Point, Chefina and Swaps, Ada King

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 1

Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix

December Challenge 2020 Division 1

Hail XOR, Calculus, Positive Prefixes, Even Pair Sum

Total Problems Solved: 75