celesta

• Username: 7★celesta
• Country:  Japan
• Student/Professional:Student
• Institution:The University of Tokyo
• 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: 5

Current Ratings Graph Old Ratings Graph

2662 (+19)RatingProvisional
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March Lunchtime 2022 Division 1(2022-03-19 23:00:00)

Global Rank:   21

Cheated in:   

Ratings System Update

(2022-03-19 23:00:00)

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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2662 (+212)RatingProvisional
Rating i Provisional Rating, click to know more

March Lunchtime 2022 Division 1(2022-12-20 00:00:00)

Global Rank:   21

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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Contests (5)

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, Magical Subsequence, ChefWM, And Or Union, Covid and Theatre Tickets, Mean equals Median, The Melancholy of Problem Setter, Devendra and Water Sports

Code Drive Division 3 (Rated)

Sum this up, Favourite String of Chef, Count Number of Peaks, Maximum Factors Problem, Game between friends, Again XOR problem, Count of Array

January Long 2022 - I, Division 2 (Unrated)

Generating Cycles, Chef and Riffles, Retrieve back the Array, Prime in a binary string, Sequence Master

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Erase All But One

January Lunchtime 2022 Division 1

Circular Permutation Recovery, Permutation XOR Sum

February Long 2022 - I, Division 1 (Unrated)

Digit Multiplication By K, Remove Adjacent, Bitwise Blend, Random OR, Binary Base Basics

CodeChef Starters 25 Division 1 (Unrated)

Building Towers, Equal MEX, Hidden Permutation, Count Arrays, K Distinct Array

February Long 2022 - II, Division 1 (Unrated)

Sequence GCD, Area Sums in Convex Polygons, Bitwise swaps, Xor Palindrome

CodeChef Starters 31 Division 1 (Unrated)

Mexy Array, The Unchanging OR, XOR and AND, Xor Travellers, Pile Partition

March Lunchtime 2022 Division 1

Mathology, Sussy Rooks, Winter, Adjacency Love, Separate Them All

CodeChef Starters 32 Division 1 (Unrated)

Maximize the Minimum, LR Shirts, Finding Shoes, Training Plans, Two Merchants, Flip Sorting, Avoid Alternating

Total Problems Solved: 61