Raju Kumar Singh

• Username: 2★raju_kumar
• 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 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 18

Current Ratings Graph Old Ratings Graph

1425 (-11)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2018(2018-01-15 15:00:00)

Global Rank:   8047

Cheated in:   

Ratings System Update

(2018-01-15 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?

1425 (-32)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2018(2022-12-20 00:00:00)

Global Rank:   8047

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 (18)

April Challenge 2016

Chef And Magical Path, Chef And Coloring, Chef and Ballons

June Challenge 2016

Chef And Binary Operation, Chef and Coins Game, Devu and an Array

July Challenge 2016

Andrash and Stipendium

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

October Challenge 2016

Chef and Keyboard, Chef and Three Dogs

July Cook-Off 2016

Chef and Proportion, Chef and Numbers

October Cook-Off 2016

Watson asks Does Permutation Exist

June Lunchtime 2016

Collisions, One more weird game

July Lunchtime 2016

Drumpf for President!

August Lunchtime 2016

Studying Alphabet

January Challenge 2017

Cats and Dogs

April Challenge 2017

Dish Of Life, Similar Dishes

May Challenge 2017

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

June Challenge 2017

A Good Set, Xenny and Coin Rankings

April Lunchtime 2017

Bear and Segment 01

January Challenge 2018

Rectangle

Total Problems Solved: 104