Prabhat Singh

• Username: 5★thelonecoder
• Country:  India
• Student/Professional:Student
• Institution:Motilal Nehru National Institute of Technology Allahabad Uttar Pradesh, 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: 36

Current Ratings Graph Old Ratings Graph

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January Cook-Off 2019 Division 1(2019-01-21 00:00:00)

Global Rank:   79

Cheated in:   

Ratings System Update

(2019-01-21 00:00:00)

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2048 (-22)RatingProvisional
Rating i Provisional Rating, click to know more

January Cook-Off 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   79

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 (36)

June Challenge 2016

Chef And Binary Operation, Chef And The Hiring Event, Devu and an Array, Chef and Coins Game

July Challenge 2016

Andrash and Stipendium, Chefland and Electricity, Chef and Tetris

August Challenge 2016

Chef and Circle Run, Chef and Chocolate, Chef and Round Run

September Challenge 2016

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

October Challenge 2016

Chef and Three Dogs, Chef and Two String, Fenwick Iterations, Big Queries, Chef and Keyboard

November Challenge 2016

Count Permutations, Friends Meeting, Urban Development, Gift and Chef, Chef and squares, Task for Alexey

December Challenge 2016

Our Base is Under Attack, Kirito in labyrinth, Train Partner

July Cook-Off 2016

Chef and Proportion

August Cook-Off 2016

Tweedle-Dee and Tweedle-Dum

September Cook-Off 2016

Lazy Jem

October Cook-Off 2016

Watson asks Does Permutation Exist, ChefWatson uses Social Network

November Cook-Off 2016

Sebi and the highway

February Lunchtime 2016

Chef and Socks

March Lunchtime 2016

Simple Statistics

July Lunchtime 2016

Drumpf for President!

August Lunchtime 2016

Studying Alphabet

September Lunchtime 2016

Chef and Inequality

December Lunchtime 2016

Superheroes and villains, Fly height mode

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior, Tourists in Mancunia

March Challenge 2017

Bandwidth of a matrix

January Cook-Off 2017

Digit Longest Increasing Subsequences 2

January Lunchtime 2017

Sealing up, Nothing in Common

April Challenge 2017

Chef and Divisor Tree, Similar Dishes, Bear and Clique Distances, Dish Of Life, Stable market, Bear and Row 01

May Challenge 2017

Chef and Subsequences, Median of adjacent maximum numbers, Blocked websites, Courses in an university, Chef and his daily routine, Gotham PD, Chef and Sub Array

June Challenge 2017

Chef and Prime Queries, A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

August Long Challenge 2017

Strings and Graphs, Greedy Candidates, Chef and Mover, Chef And Fibonacci Array, Chef and Rainbow Array, Palindromic Game

October Challenge 2017

Chef and Magic Arrays, Max Mex, A Balanced Contest

August Cook-Off 2017

Real obtuse, From heaven to earth

September Cook-Off 2017

Infinite OR Game, Statistics Construction, Subsequence Equality

October Cook-Off 2017

Chef and Counting Test, Chef and Weird Queries, Chef and Employment Test

July Lunchtime 2017

Find the Maximum Value

January Cook-Off 2018

Multiple of 3, Survive in ChocoLand

International Coding League (Rated)

Matrix Game, Stingy Strings, Maze Love

July Lunchtime 2018 Division 1

Forced Particles

January Cook-Off 2019 Division 1

Ada School

Total Problems Solved: 223