Preha Madan

• Username: 2★prehamadan
• Country:  India
• Student/Professional:Student
• Institution:Delhi Technological University New Delhi, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 10

Current Ratings Graph Old Ratings Graph

1514 (+47)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2021 Division 3 (Rated)(2021-10-11 15:00:00)

Global Rank:   81

Cheated in:   

Ratings System Update

(2021-10-11 15:00:00)

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?

1514 (-115)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2021 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   81

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 (10)

May Cook-Off 2021 Division 3

Marathon

May Lunchtime 2021 Division 3

Hoop Jump

May Challenge 2021 Division 3 (Rated)

Xor Equality, Tic Tac Toe, Golf, Solubility

June Challenge 2021 Division 3 (Rated)

Bitwise Tuples, Bella ciao, Summer Heat

June Cook-Off 2021 Division 3

ICPC Balloons, Chefland Visa

July Challenge 2021 Division 3 (Rated)

XxOoRr, Maximum Production, Relativity

July Lunchtime 2021 Division 3

Chef and Spells, Red Alert

August Challenge 2021 Division 3 (Rated)

Olympics Ranking, Chef and Bulb Invention, Special Triplets, Problem Difficulties

September Challenge 2021 Division 3 (Rated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 3 (Rated)

Digit Removal, Which Mixture, Three Boxes, MEX-OR, Longest AND Subarray

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Equal Coins

Total Problems Solved: 44