alka ranjan

• Username: 1★joya
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Information Technology, Allahabad Uttar Pradesh
• 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: 32

Current Ratings Graph Old Ratings Graph

1372 (-6)RatingProvisional
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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

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1372 (+6)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)

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Practice Paths (0)

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Contests (32)

January Challenge 2015

Sereja and Votes, Chef and Stones

February Challenge 2015

Chef and Chain, Chef and Equality

April Challenge 2015

Chef and Interview, Broken Telephone, Chef and Piano Scales

May Challenge 2015

Chef and new recipe

June Challenge 2015

Chef and Memory Limit

July Challenge 2015

Chef and Cube

August Challenge 2015

Cooking Machine

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire

December Challenge 2015

Chef and the stones

June Cook-Off 2015

Strange operations

February Lunchtime 2015

Lucky Four

June Lunchtime 2015

Chef and Two Strings

July Lunchtime 2015

Greedy puppy

September Lunchtime 2015

Sum of palindromic numbers

March Challenge 2016

Palindromic substrings

April Challenge 2016

Chef And Coloring

June Challenge 2016

Devu and an Array

July Challenge 2016

Andrash and Stipendium

September Challenge 2016

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

February Cook-Off 2016

Puppy and Sum

April Cook-Off 2016

Movie Weekend

September Cook-Off 2016

Lazy Jem

May Lunchtime 2016

Akhil And Colored Balls

August Lunchtime 2016

Studying Alphabet

January Challenge 2018

Rectangle

Total Problems Solved: 91