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Parallel Algorithms and Concurrency

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Questions and Answers

What is the result of selecting one 5 coin, one 2 coin, and one 1 coin?

Remaining count is 4 4

Remaining count is 3 3

Remaining count is 1 4 (correct)

Remaining count is 2 2

What is a disadvantage of the greedy algorithm technique?

It is only used for divide and conquer

It may not produce an optimal result in certain cases (correct)

It always produces an optimal result

It is only used for dynamic programming

What is an example of a problem where the greedy approach may not produce an optimal result?

Counting coins for a value of 18

Counting coins for a value of 25

Counting coins for a value of 20

Counting coins for a value of 15 (correct)

How does the dynamic programming technique approach problem-solving?

By breaking down the problem into smaller sub-problems and re-using their results Signup and view all the answers

What is the main difference between dynamic programming and divide and conquer?

Dynamic programming re-uses results of sub-problems Signup and view all the answers

When is dynamic programming used?

When problems can be divided into similar sub-problems Signup and view all the answers

What is the key benefit of dynamic programming?

It re-uses results of sub-problems Signup and view all the answers

What is an example of a problem that can be solved using dynamic programming?

Counting coins for a value of 15 Signup and view all the answers

What is a characteristic of the greedy algorithm technique?

It picks an immediate optimized solution Signup and view all the answers

What is a limitation of the greedy algorithm technique?

It may fail where global optimization is a major concern Signup and view all the answers