Rounak Kumar Jha

• Username: 5★legend_op
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology Patna Bihar, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 10

Current Ratings Graph Old Ratings Graph

2021 (+55)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2021 Division 2(2021-04-12 15:00:02)

Global Rank:   9

Cheated in:   

Ratings System Update

(2021-04-12 15:00:02)

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?

2021 (-42)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   9

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)

September Challenge 2020 Division 2

A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2, Chefina and Swap

October Challenge 2020 Division 2

Positive AND, Replace for X, Covid Run, Chef and Easy Queries

November Challenge 2020 Division 2

Ada and Dishes, Iron, Magnet and Wall, Magical Candy Store, Restore Sequence

December Challenge 2020 Division 1

Hail XOR, Calculus, String Operations, Positive Prefixes, Even Pair Sum

October Cook-Off 2020 Division 1

Path-etic Sums

October Lunchtime 2020 Division 2

AND Plus OR

September Lunchtime 2020 Division 2

GCD operations, Watermelon, Root the Tree

February Challenge 2021 Division 2

Frog Sort, Team Name, Prime Game, Multiple Games, Maximise Function

March Challenge 2021 Division 2

Consecutive Adding, Maximum Topological Sort, Space Arrays, Paparazzi Gennady, College Life 4, Dense Graph, Interesting XOR!

April Challenge 2021 Division 2

Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Dice, Boolean Game

Total Problems Solved: 121