yako

• Username: 5★yako
• Country:  Japan
• Student/Professional:Other
• 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: 17

Current Ratings Graph Old Ratings Graph

2148 (+14)RatingProvisional
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February Lunchtime 2021 Division 1(2021-02-27 22:45:00)

Global Rank:   50

Cheated in:   

Ratings System Update

(2021-02-27 22:45:00)

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2148 (-78)RatingProvisional
Rating i Provisional Rating, click to know more

February Lunchtime 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   50

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 (17)

August Challenge 2019 Division 2

Football, Dilemma, Zombie and the Caves, Distribute Apples

August Lunchtime 2019 Division 2

Eidi Gift, Chef and Trip

September Challenge 2019 Division 2

(Challenge) Sebi and CPU Design, Chef and Interesting Subsequences , Chef Designed a Network, Doofish Set, Fuzzy Linear Combinations, Biladerim Icin, Easy Fibonacci, Chef and Good Subsequences

September Mega Cook-Off 2019 Division 1

Angry Grandfather, Fitness Exercises

September Lunchtime 2019 Division 1

All Substrings, Find the Sum

October Challenge 2019 Division 1

Even Edges, Chef and Maximum Star Value, Array Modification

October Lunchtime 2019 Division 1 (Unrated)

Box Game

December Challenge 2019 Division 1

Addition, Sticky Notes, Chefina and Ranges, Binary XOR

March Challenge 2020 Division 1

Lasers Everywhere

April Cook-Off 2020 Division 1

Tower Counting, Simple Operations

February Lunchtime 2020 Division 1

Swapping to Palindrome

April Lunchtime 2020 Division 1

Triangle Query, Positive Mex

August Lunchtime 2020 Division 1

Game on a Strip, Counting Graphs, Alien Invasion

October Lunchtime 2020 Division 1

Chef Is Just Throwing Random Words, Cute Chef Gift, Chef Likes Good Sequences

November Lunchtime 2020 Division 1

Gasoline

September Lunchtime 2020 Division 1

Root the Tree, Robot Detector

UWCOI 2021 (Rated for all)

Organisation, Array Swaps, Efficient Delivery, Hidden Numbers

February Lunchtime 2021 Division 1

Average Sorting, Sed Max, Independent Set

Total Problems Solved: 58