Practice Achieving Disjoint Groups (18.2.2) - Subsequence Existence - Discrete Mathematics - Vol 2
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Achieving Disjoint Groups

Practice - Achieving Disjoint Groups

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define a subsequence?

💡 Hint: What does it mean to retain the order within a sequence?

Question 2 Easy

Provide an example of a strictly increasing sequence.

💡 Hint: Think of a sequence where every number increases.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What defines a subsequence?

It's a consecutive sequence from a parent sequence
It's any selection from a sequence
Only distinct numbers form a valid subsequence

💡 Hint: Focus on how order is maintained in selections.

Question 2

True or False: Every set of n+1 distinct numbers can form disjoint groups with the same sum.

True
False

💡 Hint: Consider how subsets could overlap.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a list of ten distinct real numbers, demonstrate how to find a strictly increasing or decreasing subsequence of length five.

💡 Hint: Look for numbers that maintain their order during selection.

Challenge 2 Hard

Assume you have six distinct real numbers between 1 and 10, find pairs ensuring that shared values from any disjoint subsets yield the same sum.

💡 Hint: Focus on the combinations that lead to shared outcomes.

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