CODEWITHSUNDEEP
pythoncomputer-science
Iplaysoccer
Iplaysoccer

Reputation: 97

How to print a string based on user input of height and width

I’m sure this is a simple question, but my professor is terrible at explaining things and since I’m new to computer science I need help!! The assignment is to make a function that prints/returns a string given by the user in different formats based on their selected height and width.

for example, if the user string is ‘<..vvv..^’ and the given width is 3 and the given height is 3, it should print out:

     <..
     vvv
     ..^

Another example for the same function:

     >>>the_function(‘<.vv.v.v’,2,4)
     <.
     vv
     .v
     .v

Something else would be to make another function. This one takes a string, a random integer(x), an integer of width and an integer of height and returns the row of (x) so for example:

     >>>another_function(‘.<.>>>..v’, 1, 3, 3)
     ‘>>>’

Another example for the same function:

     >>>another_function(‘.v>..>..’, 0, 2, 8)
     ‘.v’

I have absolutely no idea how to do this or even how to go about searching up things that might help. Any help would be so so appreciated! Thank you!!

Upvotes: 1

Views: 574

Answers (3)

Xin Cheng
Xin Cheng

Reputation: 1458

One line solution

This solution advances in both memory and run-time performance compared with for-loop-check methods.

'''
@parm s: string to printed
@parm h: height of each chunk
@parm w: weight of each chunk
'''
def print_format(s:str, h:int, w:int):
    print("".join([s[i] if (i+1)%w!=0 else (s[i]+"\n" if (i+1)%(w*h)!=0 else s[i]+"\n\n") for i in range(len(s))]))

Demo

print_format('.vv.v.', 2, 3)
  • Output
.v
v.
v.

Upvotes: 0

mozway
mozway

Reputation: 262484

You can use a simple loop:

def the_function(s, w, h):
    for i in range(0, len(s), w):
        print(s[i:i+w])

the_function('<.vv.v.v',2,4)

Output:

<.
vv
.v
.v

Note that h is not really needed as once you know the string length and desired with, the height is fixed.

You could however use this parameter to define a maximum number of lines to print:

def the_function(s, w, h):
    for n, i in enumerate(range(0, len(s), w)):
        if n>=h:
            break
        print(s[i:i+w])

the_function('<.vv.v.v', 2, 3)

Output:

<.
vv
.v

For the other function, you just need to calculate the start position and print once. Here again the last parameter is useless:

def another_function(s, n, w, h):
    print(s[n*w:(n+1)*w])

another_function('.<.>>>..v', 1, 3, 3)

Output: >>>

Upvotes: 1

meowmeow
meowmeow

Reputation: 258

I'll focus on the reshape function:

  • We import numpy because it has built-in reshaping functionality for arrays
  • Split the input string to a list of characters
  • Convert list of characters to array
  • Reshape array based on x,y params (the shape options depend on the object's size btw)
  • Loop through the top-level array objects
  • Rejoin each object to a string
  • Print each string
import numpy as np

def reshape_string(input_string,x,y):
    new = np.array(list(input_string)).reshape((x,y))
    for x in new:
        print(''.join(x))

Upvotes: 1

Related Questions