Kotaro Matsuda

• Username: 7★mtsd
• Country:  Japan
• Student/Professional:Professional
• Organisation:Others
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 16

Current Ratings Graph Old Ratings Graph

2725 (-36)RatingProvisional
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July Lunchtime 2022 Division 1 (Rated)(2022-07-17 23:30:00)

Global Rank:   48

Cheated in:   

Ratings System Update

(2022-07-17 23:30:00)

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2725 (-6)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2022 Division 1 (Rated)(2022-12-20 00:00:00)

Global Rank:   48

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 (16)

May CodeChef Starters 2021 Division 3 (Rated)

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

June Lunchtime 2021 Division 2

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

August Lunchtime 2021 Division 2

Longest Spanning Substrings, Chef and Deque, Just a Graph, Bunny Hops, K-th Maximum, Crossing Blocks, Min-Max Path

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

September Lunchtime 2021 Division 1

Interesting Representation, Subsequence LCS, Alice vs Bob Faceoff

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

SnackDown 2021 - Online Pre-Elimination

Mega mu - 1, Guests like slippers, Good ranking, Product Pain, Non-Decreasing Subsequence of size K

SnackDown 2021 - Online Elimination Round (Rated for all)

Random Convex Hull, Graduate Work Matters, Sorting Segments

November Lunchtime 2021 Division 1

Min-Max Rotations, Ghost Chase, Permutation Pairs, Subarray Jumps

January Lunchtime 2022 Division 1

Circular Permutation Recovery, Permutation Deletion, Permutation XOR Sum

March Cook-Off 2022 Division 1

Secret Tree, Dragonado And XOR, Flippable Points, Alternating Divisibility

March Lunchtime 2022 Division 1

Separate Them All, Adjacency Love, Mathology, Winter

April Cook-Off 2022 Division 1

Chef Goes Shopping, Sorted Distances, Sequence Cost, Max LCA Sum

April Lunchtime 2022 Division 1(Rated)

AND Palindromes, Secret Machine Mania, Do Not Touch the MEX!!!, Modular Circular Permutations

May Cook-Off 2022 Division 1 (Rated)

Split Powers Of 2, Different Subarrays Rearrange, Triple Inversions

May Lunchtime 2022 Division 1 (Rated)

Balanced 0-1 Tree, Equal After And, Rearrange Ranges

July Lunchtime 2022 Division 1 (Rated)

Binary String Happiness, Consecutive XOR, Largest Family

Total Problems Solved: 74