Lab 1
Byungjoo Lee
Yonsei University
AIC2100 AI Programming with Python
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You must follow the specification thorougly!
• Any typos (including whitespace and linebreak) will result in a point deduction.
• If you’re asked to write the comment or docstring, you must add them.
• If some Python libraries are prohibited, importing them will result in 0 points.
• Depending on the lab content, additional rules can be added.
• Please read the specification document carefully and submit your code.
• We won't accept appeals for point deductions based on misinterpreting the lab specification
documentation.
• If any specification is unclear, please post your question on the Q&A board.
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Please refer to the guidelines noted in previous labs. They remain applicable for this and
subsequent labs.
Any updates in guidelines will be announced again.
Coding guideline
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Notation
• To clearly instruct the lab specifications, (1) we use “˽” to depict a whitespace (blank)
character and (2) “¤” for a “
” (newline) character.
• Underlined text refers to the user input (will be demonstrated again in a further lab).
• New notations will be demonstrated additionally on there first mention.
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One important note about automated archiving
• In lab0, the automated archive code used the incorrect folder name format “{student_id}”.
• It should have been “lab{X}_{student_id}”. (Sorry)
• Don’t worry, we did not deduct your point with this since it is our mistake.
• In the slides explaning the automated archive code (ap_lab0.pdf p.15-16), we specified the
wrong format, while in the slide explaning manual archiving (p. 17), we specified the correct
format.
• We revised the code and update it to LearnUs, even though it is outdated.
• TL;DR
• If you want to use automated archiving, just use our provided code. You don’t need to
revise it on your own.
• If you manually archived in Lab 0, “lab{X}_{student_id}” foldername is correct.
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Problem 1
Write a program that allows the user to enter any integer base and integer exponent, and displays
the value of the base raised to that exponent. Your program should work as shown below.
Note 1. You do not have to consider faulty input. More specifically, we will test your program for
integer inputs only.
Note 2. The integer base and exponent will be non-negative.
This program needs to ask two times for input from the user. The input prompt with the second
input() command depends on the input from the first input() command. This is highlighted in the
following example:
What˽base?˽10¤
What˽power˽of˽10?˽4¤
10˽to˽the˽power˽of˽4˽is˽10000¤
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Problem 1
Here are some examples.
What˽base?˽0¤
What˽power˽of˽0?˽5¤
0˽to˽the˽power˽of˽5˽is˽0¤
What˽base?˽2¤
What˽power˽of˽2?˽10¤
2˽to˽the˽power˽of˽10˽is˽1024¤
What˽base?˽5¤
What˽power˽of˽5?˽0¤
5˽to˽the˽power˽of˽0˽is˽1¤
What˽base?˽-25¤
What˽power˽of˽-25?˽3.7¤
You don’t need to consider non-integer inputs.
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Problem 1
FAQ
Q. What is 0
0?
A. Mathematically, it converges to 1 and Python will output 1 too.
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Problem 2
Write a program that allows the user to enter a base integer and a four-digit number, and displays
its value in base 10. Each digit should be entered one per line, starting with the leftmost digit, as
shown below. This program also needs to ask several times for input from the user. The output
depends on the input from input() command. This is highlighted in the following example:
Enter˽the˽base˽integer:˽2¤
Enter˽leftmost˽digit:˽1¤
Enter˽the˽next˽digit:˽0¤
Enter˽the˽next˽digit:˽0¤
Enter˽the˽last˽digit:˽1¤
Your˽input˽is˽1001˽in˽base˽2¤
The˽value˽is˽9˽in˽base˽10¤
Example 1
Enter˽the˽base˽integer:˽5¤
Enter˽leftmost˽digit:˽0¤
Enter˽the˽next˽digit:˽3¤
Enter˽the˽next˽digit:˽4¤
Enter˽the˽last˽digit:˽2¤
Your˽input˽is˽0342˽in˽base˽5¤
The˽value˽is˽97˽in˽base˽10¤
Example 2
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Problem 2
Note 1. You can assume that the base integer is integer from 2 to 10 and four-digit numbers are
non-negative integers.
Note 2. You do not have to consider faulty inputs. There are two cases.
- Invalid base integer input (non-integer or out-of-range)
- Invalid four-digit number (non-integer or exceeding base integer)
Note 3. You don’t need to omit starting zeros when printing your input digit numbers (e.g., if your
input is 0011, then print 0011, not 11). See example 2 in the previous slide.
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Problem 3
Write a program in which the user can enter any number of positive and negative integer values,
that displays the number of positive values entered and their summation, as well as the negative
values. Your program should work in following conditions.
1. Exclude all numbers that aboslute value is greater than 100 (i.e.,