Mario
Implement a program that prints out a half-pyramid of a specified height, per the below.
$ ./mario
Height: 4
#
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Specification
- Write, in a file called
mario.py
in~/pset6/mario/less/
, a program that recreates the half-pyramid using hashes (#
) for blocks, exactly as you did in Problem Set 1, except that your program this time should be written (a) in Python and (b) in CS50 IDE. - To make things more interesting, first prompt the user with
get_int
for the half-pyramid’s height, a positive integer between1
and8
, inclusive. - If the user fails to provide a positive integer no greater than
8
, you should re-prompt for the same again. - Then, generate (with the help of
print
and one or more loops) the desired half-pyramid. - Take care to align the bottom-left corner of your half-pyramid with the left-hand edge of your terminal window.
Usage
Your program should behave per the example below.
$ ./mario
Height: 4
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Testing
No check50
for this problem, but be sure to test your code for each of the following.
- Run your program as
python mario.py
and wait for a prompt for input. Type in-1
and press enter. Your program should reject this input as invalid, as by re-prompting the user to type in another number. - Run your program as
python mario.py
and wait for a prompt for input. Type in0
and press enter. Your program should reject this input as invalid, as by re-prompting the user to type in another number. - Run your program as
python mario.py
and wait for a prompt for input. Type in1
and press enter. Your program should generate the below output. Be sure that the pyramid is aligned to the bottom-left corner of your terminal, and that there are no extra spaces at the end of each line.
#
- Run your program as
python mario.py
and wait for a prompt for input. Type in2
and press enter. Your program should generate the below output. Be sure that the pyramid is aligned to the bottom-left corner of your terminal, and that there are no extra spaces at the end of each line.
#
##
- Run your program as
python mario.py
and wait for a prompt for input. Type in8
and press enter. Your program should generate the below output. Be sure that the pyramid is aligned to the bottom-left corner of your terminal, and that there are no extra spaces at the end of each line.
#
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####
#####
######
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########
- Run your program as
python mario.py
and wait for a prompt for input. Type in9
and press enter. Your program should reject this input as invalid, as by re-prompting the user to type in another number. Then, type in2
and press enter. Your program should generate the below output. Be sure that the pyramid is aligned to the bottom-left corner of your terminal, and that there are no extra spaces at the end of each line.
#
##
- Run your program as
python mario.py
and wait for a prompt for input. Type infoo
and press enter. Your program should reject this input as invalid, as by re-prompting the user to type in another number. - Run your program as
python mario.py
and wait for a prompt for input. Do not type anything, and press enter. Your program should reject this input as invalid, as by re-prompting the user to type in another number.
How to Submit
Execute the below, logging in with your GitHub username and password when prompted. For security, you’ll see asterisks (*
) instead of the actual characters in your password.
submit50 cs50/problems/2020/spring/sentimental/mario/less