Upendra Singh

• Username: 1★upendra2412
• Country:  India
• Student/Professional:Student
• Institution:Maulana Azad National Institute of Technology, Bhopal Madhya 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: 62

Current Ratings Graph Old Ratings Graph

1333 (-38)RatingProvisional
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August Challenge 2020 Division 2(2020-08-17 15:00:02)

Global Rank:   26377

Cheated in:   

Ratings System Update

(2020-08-17 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?

1333 (+50)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   26377

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 (62)

April Challenge 2013

Maximum Weight Difference

June Challenge 2013

Predictopus, Lapindromes

July Cook-off 2013

Chopsticks

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Deleting numbers, Splitting Candies

August Cook-Off 2013

Chef and The Right Triangles

September Challenge 2013

Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2

October Challenge 2013

Helping Lira, Maxim and Dividers, Edit Distance on Grid

November Challenge 2013

Superpowers of 2, Sereja and Vectors, Uncle Johny, Square Digit Squares, Missing some chairs

December Challenge 2013

Art in Digital Age, Chef and Codes, Funny Marbles, Magic Pairs

December Lunchtime 2013

Mike and Matrices

January Challenge 2014

Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I

February Cook-Off 2014

Chef and Remissness, Chef and Kingship

March Cook-Off 2014

Dividing Stamps

April Cook-Off 2014

Snape and Ladder

May Cook-Off 2014

Divide the Cake, Ups and Downs

July Cook-Off 2014

Copy-Paste, Sum Queries

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD

October Cook-Off 2014

The Army, Walk on the Axis

February Challenge 2014

Make It Zero, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make It Zero 2

March Challenge 2014

Team Split, Walk, Little Chef and Numbers

April Challenge 2014

Sereja and Permutation, Counting Matrices, Farmer Feb, Chef and Digits, Shortest Path in Binary Trees

May Challenge 2014

Chef-jumping, Stone

June Challenge 2014

Chef and Subarray, Guessing Game

July Challenge 2014

Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point

August Challenge 2014

The Leaking Robot, Cleaning Tables, Chef and Gift

September Challenge 2014

Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Fun with Rotation

October Challenge 2014

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

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome, The Spelling Problem

December Challenge 2014

Chef and Apple Trees

July Lunchtime 2014

And Operation

January Challenge 2015

Chef and Stones

January Lunchtime 2015

Piece of cake, Just multiply

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality

July Challenge 2015

Bread, Chef and Cube

August Challenge 2015

Gravity Guy, Cooking Machine, Aditi and Magic Trick

September Challenge 2015

Count Steps in Matrix

February Challenge 2016

Chef-Detective

March Challenge 2016

Palindromic substrings

April Challenge 2016

Chef and Ballons, Chef And Coloring

June Challenge 2016

Devu and an Array

July Challenge 2016

Andrash and Stipendium, Chef and Tetris, Chefland and Electricity

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number

June Challenge 2017

A Good Set

October Challenge 2018 Division 2

Chef and Serves

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi

Total Problems Solved: 269