Is there an error?

Computer Science Level 3

The following Python code is meant to output the first 10 positive perfect squares .

What will happen when the code is executed? 

1
2
 
for i in range(10):
    print(i**2)


Note: You are not allowed to run the code using a Python interpreter!

Note: The syntax highlighting is off on purpose!

Runtime error Syntax error Semantic error Code works as planned

Jesse Nieminen by Jesse Nieminen , 23, Finland

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1 solution

Nick Schreiner
Feb 14, 2017

The variable i will loop from 0 to 9. Since the desired output is the first 10 positive squares, and we are including 0, the output will not be what we intend. This logical issue is called a semantic error.

In contrast, a syntax error is an issue with the language (for example, forgetting the : after the for statement) and is typically caught by your IDE before the program even begins. A runtime error is any uncaught error that happens at runtime. A common example might be a divide by zero error.

8 Helpful 0 Interesting 0 Brilliant 0 Confused

Upvote for the additional explanation of syntax and runtime errors!

Christopher Boo - 4 years, 3 months ago

I'm not yet familiar with Python; I guessed it was a syntax error because print didn't end in a semicolon which would be a problem in C++.

Guy Alves - 4 years, 3 months ago

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