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Algorithms

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Question 53

An electronics quality control program checks whether manufactured resistors are within acceptable tolerance limits of 100 Ω. Resistors with resistance less than 98 Ω or greater than 102 Ω are rejected, while others are accepted.

1   n = 0
2   resistance = 0
3   accept = 0
4   reject = 0
5
6   while (n < 4):
7       n = n + 1
8       resistance = int(input("Enter resistor resistance: "))
9       if ((resistance < 98) or (resistance > 102)):
10          reject = reject + 1
11      else:
12          accept = accept + 1
13
14  print(accept, reject)

The inputs provided to the program are: 101, 97, 102, 99

Complete the trace table showing the execution of the program with these inputs.

You may not need to fill in all the rows in the table.

nacceptrejectresistanceDisplay
[6]
Markscheme

Algorithms Questions

  1. GCSE
  2. /Computer Science
  3. /Algorithms

159 exam-style questions on Edexcel GCSE Computer Science Algorithms, covering Constructs for solving problems, Variables, constants and data structures, Arithmetic, relational and logical operators, Tracing algorithm output with trace tables, Types of error and correcting logic errors, Standard algorithms (sorts and searches), and Evaluating algorithm fitness and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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