sayaka amemiya

• Username: 7★sayaka
• Country:  Japan
• Student/Professional:Student
• Institution:Saitama University 255 Shimookubo, Sakura Ward, Saitama, Saitama Prefecture 338-8570, Japan
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

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No. of Contests Participated: 14

Current Ratings Graph Old Ratings Graph

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Starters 86 Division 1 (Rated for All)(2023-04-19 22:00:00)

Global Rank:   9

Cheated in:   

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(2023-04-19 22:00:00)

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2685 (+74)RatingProvisional
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September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)(2022-12-20 00:00:00)

Global Rank:   10

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

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Contests (14)

May CodeChef Starters 2021 Division 3 (Rated)

Cheating Time, Minimum Popping, Subtree Center, Plagiarism, Lazy Chef, Correct Sentence

June Challenge 2021 Division 2 (Unrated)

Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Dual Distance, Summer Heat, Minimum Subtree Cover

June Lunchtime 2021 Division 2

From Rational to Binary, False Number, Node Marking, Unpleasant Ones, Tic Tac Toe

July Cook-Off 2021 Division 2

Beautiful Subsequence, XOR-ORED, Mod Equality, Hidden Colored Graph

CodeChef Starters 6 Division 2 (Unrated)

Joker and Batman, Chefs Homework Dilemma, Even tuples, Palindromic number, Three Dices, Cricket Ranking

August Cook-Off 2021 Division 1

Odd Array, Different String, Chef 2 Chef, Interactive Equivalency, Clear the Array

August Lunchtime 2021 Division 1

Bunny Hops, Min-Max Path, Just a Graph, Longest Spanning Substrings, Chef and Deque

September Cook-Off 2021 Division 1

Chess Kings Chasing Game, Chef and Pairwise Distances, Permutation and GCD Set, Half Sequence, Fake Swaps

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

December Lunchtime 2021 Division 1

In-tree-active Node Coloring, Optimal Sorting, Romantic Reversals, Sleep Technique , Point constraints

January Cook-Off 2022 Division 1

Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Beautiful Permutation, Erase All But One

February Cook-Off 2022 Division 1

Xor Becoming Uncanny, Perfect Permutation, PerMEXuation , Mango Market, Slingshot

February Lunchtime 2022 Division 1

Chef Cooks Permutation, Visit Them All, Magical Modulo, Magnet Sort

CodeChef Starters 29 Division 1 (Unrated)

String protocol, Plusle and Minun on Array, Triple Sundae, Fill the Bucket, Tyre problem, Increase 2 consecutive characters, Decomposition Reaction, Binary OP, Max Heat, Bomb the base

March Cook-Off 2022 Division 1

Secret Tree, Dragonado And XOR, Alternating Divisibility

September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)

Increasing Addition, Remove Numbers, Adjacent Pairs, Where Is the Root, Longest Unfriendly Subsequence

Starters 86 Division 1 (Rated for All)

Least Size, Minimum Operation, Sum Over All Arrays, String Game , Largest Y

Starters 83 Division 1 (Rated)

Mex Segments, Beauty Sum, Construct String, Order by XOR, Saber Slays, Rotate to Minimum, Restoration

Starters 97 Division 1 (Rated till 6 Stars)

Make It Special, Unreachability Cost, No Palindrome, Triplets Min

Starters 98 Division 1 (Rated till 6 Stars)

3-Blast Palindrome, Ball Distribution

Total Problems Solved: 110