Algorithm design and problem-solving (3)
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Computer Science
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1.
Question 1
Write pseudocode to calculate the area of a rectangle. Your pseudocode should take the length and width of the rectangle as input and output the area.
Pseudocode:
- START
- INPUT length
- INPUT width
- area = length * width
- OUTPUT area
- END
2.
Question 3: A student is designing a program to find the largest number in a set of numbers. Explain how a standard method of solution could be used to achieve this. Include a pseudocode example.
A standard method of solution for finding the largest number in a set involves iterating through the numbers and keeping track of the largest number found so far. Initially, the largest number is assumed to be the first number in the set. Then, for each subsequent number, it is compared to the current largest number. If the current number is larger, it becomes the new largest number.
Pseudocode Example:
START SET largest_number to the first number in the set FOR each number in the set: IF the current number is greater than largest_number: SET largest_number to the current number ENDIF ENDFOR DISPLAY largest_number END
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3.
Question 1: Explain the purpose of using a standard method of solution in computer science. Give two reasons why it is important.
A standard method of solution is a consistent and well-defined approach to solving a particular type of problem in computer science. Its purpose is to ensure that solutions are reliable, repeatable, and easily understood by others.
Two reasons why it is important are:
- Consistency: A standard method guarantees that the same problem will always be solved in the same way, reducing errors and making debugging easier.
- Efficiency: Standard methods often involve well-established algorithms and techniques, leading to more efficient solutions compared to ad-hoc approaches.