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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Greedy Algorithms 1: Coin Change Problem

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Beginner

Intermediate

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What is the main idea behind a greedy algorithm?

a: It explores all possible solutions Explanation

Explanation

b: It makes a locally optimal choice at each step Explanation

Explanation

c: It always produces the optimal solution Explanation

Explanation

d: It uses recursion and backtracking Explanation

Explanation

In the coin change problem, what is the objective?

a: To maximize the number of coins used Explanation

Explanation

b: To minimize the value of coins Explanation

Explanation

c: To make the amount using the fewest number of coins Explanation

Explanation

d: To use all available denominations Explanation

Explanation

Which of the following is a valid coin denomination set for the classic coin change problem?

a: {1, 2, 5, 10} Explanation

Explanation

b: {3, 7, 11} Explanation

Explanation

c: {4, 6, 8} Explanation

Explanation

d: {9, 13} Explanation

Explanation

What is meant by a 'locally optimal' choice?

a: Best solution for the entire problem Explanation

Explanation

b: Best choice among all algorithms Explanation

Explanation

c: Best choice at the current step Explanation

Explanation

d: Random selection of a choice Explanation

Explanation

Which approach is generally used to guarantee an optimal solution for the coin change problem?

a: Greedy algorithm Explanation

Explanation

b: Divide and conquer Explanation

Explanation

c: Brute force only Explanation

Explanation

d: Dynamic programming Explanation

Explanation

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