Find the Logic Error

Posted on October 15, 2020 by Administrator Posted in Computer Science, Computing Concepts, GCSE Concepts, Python Challenges

Check the following pieces of code. The syntax of the code is correct and the programs do run. However, while testing these programs, you will notice that they do not always produce the expected output! This is because each program contains a logic error. Can you spot and fix these logic errors?

Program 1:Program 2:Program 3:Program 4:Program 5:Program 6:

Higher or Lower?

The aim of this program is to identify the highest number from 2 user inputs:

Test Plan:

Test #	Input Values	Expected Output	Actual Output
#1	a: 3 b: 4	4
#2	a: 5 b: 2	5
#3	a: 6 b: 6	6
#4	a: 12 b: 4	12

Average Score?

The aim of this program is to calculate the average score out of 3 scores:

Test Plan:

Test #	Input Values	Expected Output	Actual Output
#1	Score #1: 10 Score #2: 20 Score #3: 30	20
#2	Score #1: 0 Score #2: 0 Score #3: 30	10
#3	Score #1: 50 Score #2: 50 Score #3: 50	50
#4	Score #1: 20 Score #2: 70 Score #3: 30	40

Your age in the future?

The aim of this program is to calculate how old you will be in a given number of years:

Test Plan:

Test #	Input Values	Expected Output	Actual Output
#1	Age: 15 Gap: 5	Age: 20
#2	Age: 18 Gap: 30	Age: 48
#3	Age: 20 Gap: 80	Age: 100

What’s my grade?

The aim of this program is for the user to input a test score and for the program to output a grade as follows:

Any score below 50 should receive a U grade
Any score between 50 and 69 should receive a Pass grade
Any score between 70 and 89 should receive a Merit grade
Any score of 90 or above should receive a Distinction grade

Test Plan:

Test #	Input Values	Expected Output	Actual Output
#1	Score: 30	Grade: U
#2	Score: 65	Grade: Pass
#3	Score: 82	Grade: Merit
#4	Score: 97	Grade: Distinction
#5	Score: 102	Invalid Score!
#6	Score: 0	Grade: U
#7	Score: 50	Grade: Pass
#8	Score: 69	Grade: Pass
#9	Score: 70	Grade: Merit
#10	Score: 89	Grade: Merit
#11	Score: 90	Grade: Distinction
#12	Score: 100	Grade: Distinction

Tip of the day!

The aim of this program is to generate a tip of the day based on the weather conditions.

Test Plan:

Test #	Input Values	Expected Output	Actual Output
#1	Sunny: Yes Rainy: Yes Snowy: No Windy: Yes	You might see a rainbow today! Wear a raincoat! Have a good day!
#2	Sunny: No Rainy: Yes Snowy: No Windy: No	Take your umbrella! Have a good day!
#3	Sunny: No Rainy: No Snowy: Yes Windy: Yes	Wear a raincoat! Have a good day!