Pinku Deb Nath

• Username: 4★prantoran
• Country:  Bangladesh
• Student/Professional:Student
• Institution:North South University Dhaka, Bangladesh
• 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: 34

Current Ratings Graph Old Ratings Graph

1849 (-41)RatingProvisional
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July Challenge 2018 Division 1(2018-07-16 15:00:00)

Global Rank:   625

Cheated in:   

Ratings System Update

(2018-07-16 15:00:00)

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1849 (+39)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2018 Division 1(2022-12-20 00:00:00)

Global Rank:   625

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 (34)

December Challenge 2013

Magic Pairs

January Challenge 2014

Please like me, Chef and Feedback

June Cook-Off 2014

Counting Flags

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid

April Challenge 2014

Farmer Feb, Shortest Path in Binary Trees

May Challenge 2014

Chef-jumping, Stone

June Challenge 2014

Chef and Subarray, Guessing Game

July Challenge 2014

Count Substrings, Reach The Point, Chef and Frogs

August Challenge 2014

Chef and Gift

October Challenge 2014

Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

July Lunchtime 2014

Shift The String

January Challenge 2015

Chef and Stones, Gcd Queries, One Dimensional Kingdoms, Chef and A Large Permutation, Sereja and Votes

March Challenge 2015

Chef and Notebooks

June Challenge 2015

Steady tables, Chef and Memory Limit, Chef and Polygons

July Challenge 2015

Bread, Na2a and lucky stone, Chef and Cube

August Challenge 2015

Way Out, Aditi and Magic Trick, Cooking Machine, Gravity Guy

September Challenge 2015

Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Lighthouses

December Challenge 2015

Chef and the stones

December Lunchtime 2015

Distinct Codes

January Long Challenge 2016

Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

June Challenge 2016

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

July Challenge 2016

Andrash and Stipendium, Chefland and Electricity

August Challenge 2016

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

September Challenge 2016

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

March Cook-Off 2016

Digital clock, Alternating subarray prefix

April Lunchtime 2016

Coins And Triangle

June Lunchtime 2016

Collisions, One more weird game, Square in numbers

August Lunchtime 2016

Lock-Free Stack, Studying Alphabet

June Challenge 2017

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

April Lunchtime 2018 Division 2

Two vs Ten, The hardest gcd problem, Triple-tree decomposition

Total Problems Solved: 90