Suche senden
Hochladen
yukicoder : No.140 みんなで旅行
•
0 gefällt mir
•
870 views
K
kmjp
Folgen
yukicoderの出題問題です。
Weniger lesen
Mehr lesen
Daten & Analysen
Melden
Teilen
Melden
Teilen
1 von 5
Jetzt herunterladen
Downloaden Sie, um offline zu lesen
Empfohlen
yukicoder : No.139 交差点
yukicoder : No.139 交差点
kmjp
yukicoder : No.161 制限ジャンケン
yukicoder : No.161 制限ジャンケン
kmjp
yukicoder : No.195 フィボナッチ数列の理解(2)
yukicoder : No.195 フィボナッチ数列の理解(2)
kmjp
yukicoder : No.269 見栄っ張りの募金活動
yukicoder : No.269 見栄っ張りの募金活動
kmjp
2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
Marius Sescu
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
Expeed Software
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
Pixeldarts
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
ThinkNow
Empfohlen
yukicoder : No.139 交差点
yukicoder : No.139 交差点
kmjp
yukicoder : No.161 制限ジャンケン
yukicoder : No.161 制限ジャンケン
kmjp
yukicoder : No.195 フィボナッチ数列の理解(2)
yukicoder : No.195 フィボナッチ数列の理解(2)
kmjp
yukicoder : No.269 見栄っ張りの募金活動
yukicoder : No.269 見栄っ張りの募金活動
kmjp
2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
Marius Sescu
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
Expeed Software
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
Pixeldarts
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
ThinkNow
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
marketingartwork
Skeleton Culture Code
Skeleton Culture Code
Skeleton Technologies
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
Neil Kimberley
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
contently
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Albert Qian
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Kurio // The Social Media Age(ncy)
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
Search Engine Journal
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
SpeakerHub
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Clark Boyd
Getting into the tech field. what next
Getting into the tech field. what next
Tessa Mero
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Lily Ray
How to have difficult conversations
How to have difficult conversations
Rajiv Jayarajah, MAppComm, ACC
Introduction to Data Science
Introduction to Data Science
Christy Abraham Joy
Time Management & Productivity - Best Practices
Time Management & Productivity - Best Practices
Vit Horky
The six step guide to practical project management
The six step guide to practical project management
MindGenius
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
RachelPearson36
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Applitools
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
GetSmarter
ChatGPT webinar slides
ChatGPT webinar slides
Alireza Esmikhani
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Project for Public Spaces & National Center for Biking and Walking
Weitere ähnliche Inhalte
Empfohlen
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
marketingartwork
Skeleton Culture Code
Skeleton Culture Code
Skeleton Technologies
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
Neil Kimberley
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
contently
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Albert Qian
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Kurio // The Social Media Age(ncy)
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
Search Engine Journal
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
SpeakerHub
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Clark Boyd
Getting into the tech field. what next
Getting into the tech field. what next
Tessa Mero
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Lily Ray
How to have difficult conversations
How to have difficult conversations
Rajiv Jayarajah, MAppComm, ACC
Introduction to Data Science
Introduction to Data Science
Christy Abraham Joy
Time Management & Productivity - Best Practices
Time Management & Productivity - Best Practices
Vit Horky
The six step guide to practical project management
The six step guide to practical project management
MindGenius
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
RachelPearson36
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Applitools
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
GetSmarter
ChatGPT webinar slides
ChatGPT webinar slides
Alireza Esmikhani
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Project for Public Spaces & National Center for Biking and Walking
Empfohlen
(20)
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
Skeleton Culture Code
Skeleton Culture Code
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Getting into the tech field. what next
Getting into the tech field. what next
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
How to have difficult conversations
How to have difficult conversations
Introduction to Data Science
Introduction to Data Science
Time Management & Productivity - Best Practices
Time Management & Productivity - Best Practices
The six step guide to practical project management
The six step guide to practical project management
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
ChatGPT webinar slides
ChatGPT webinar slides
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
yukicoder : No.140 みんなで旅行
1.
yukicoder No. 140 みんなで旅行 出題/解説
kmjp 1
2.
問題 • N組の夫婦(2×N)人を幾つかのグループに分け る • 各グループに最低1組は夫婦ペアで含まれる ような分け方は何通りあるか? A
A B B C C D D E E F F 例:6組の夫婦を3つのグループに分ける場合 A A B B C C D DE E FF 2
3.
解法(1) • 夫婦で同じグループに入る組を先に分けると楽 • 𝐹
𝑥, 𝑦 を 夫婦同じグループに入る夫婦が𝑥組で グループ数が𝑦となる組み合わせとする • 𝐹 𝑥, 𝑦 = 1 (𝑥 = 𝑦 = 0) 0 (𝑥 < 𝑦 𝑜𝑟 𝑦 ≤ 0) 𝐹 𝑥 − 1, 𝑦 − 1 + 𝑦 × 𝐹 𝑥 − 1, 𝑦 (𝑜𝑡ℎ𝑒𝑟𝑤𝑖𝑠𝑒) • 𝐹 𝑥, 𝑦 はDPで列挙できる 3 (𝑥 − 1)組がすでに(𝑦 − 1)グループ を作っていて、𝑥組目は新たな𝑦個目 のグループを作る場合 (𝑥 − 1)組がすでに𝑦グループを 作っていて、𝑥組目はそのどれ かに入る場合
4.
解法(2) • 𝐹 𝑥,
𝑦 を計算できると後は簡単 • 𝑁組中𝑥組の夫婦が同じグループで、計𝑦グルー プ作る組み合わせは: 𝑁 𝐶 𝑥 × 𝐹 𝑥, 𝑦 × 𝑦 × (𝑦 − 1) 𝑁−𝑥 • 上記式を各𝑥, 𝑦に対して計算して総和を取る 4 前スライドの通り 夫婦が同じグループ に入る𝑥組の選び方 夫婦が別々のグループに分かれる 残り(𝑁 − 𝑥) 組の夫婦の分かれ方
5.
元ネタ・所感 • ARC009 C
を解いていて思いついた問題 • yukicoderに数え上げ問題少ないなと 思って作ってみました – 間に門松列ブームで大量の数え上げ問題が 出てしまいちょっと今更感 5
Jetzt herunterladen