NIRAJ kumar

• Username: 2★niraj_9199
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology, Jamshedpur Jharkhand, India
• 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: 13

Current Ratings Graph Old Ratings Graph

1570 (+59)RatingProvisional
Rating i Provisional Rating, click to know more

September Cook-Off 2020 Division 2(2020-09-21 00:00:02)

Global Rank:   61

Cheated in:   

Ratings System Update

(2020-09-21 00:00:02)

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?

1570 (+13)RatingProvisional
Rating i Provisional Rating, click to know more

September Cook-Off 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   61

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 (13)

March Challenge 2018 DIV 2

Mix the Colors, Chef and Glove, A Big Sale

March Cook-off 2018 Division 2

Chef Goes to the Cinema, Chef Judges a Competition

April Cook-off 2018 Division 2

Cut the Board

May Cook-off 2018 Division 2

Secret Recipe

April Lunchtime 2018 Division 2

Two vs Ten

April Challenge 2018 Division 2

Chef and Array (Challenge), Weight of Numbers, Count Good Prefixes, Average of Pairs, Workers

May Challenge 2018 Division 2

Minimum Deletions, Xor Again, Mighty Friend

July Challenge 2018 Division 2

Magic Set, Strike or Spare

June Lunchtime 2018 Division 2

Summary Power, Counting Pretty Numbers

July Lunchtime 2018 Division 2

Split Stones

Code Melange (Rated)

XD Subsequences, The Deadly Sin, Candy Love

June Cook-Off 2020 Division 2

Cache Hits, Max Mex

September Cook-Off 2020 Division 2

Maximise Subsequence Value, Bulbs and Wires, Bowling Strategy

Total Problems Solved: 60