Re: Nested Loop to Generate Triangle

[MRAB]

On 2017-05-25 17:28, Victor Demelo wrote:

I need the triangle to be in reverse. The assignment requires a nested loop to 
generate a triangle with the user input of how many lines.

Currently, I get answers such as:
OOOO
OOO
OO
O

When I actually need it to be like this:
OOOO
 OOO
  OO
   O


I just need to get it flipped-over on the other side.

Here is the code I have written, thank you.



base_size = int(input("How many lines? "))
columns = base_size

for row in range (base_size) :

    for columns in range (columns) :
        print('O', end='')
    print()

On row 0 (the top row) you want 0 spaces then base_size repeats of 'O'.

On row 1 you want 1 spaces then (base_size - 1) repeats of 'O'.

On row 2 you want 2 spaces then (base_size - 2) repeats of 'O'.

Do you see the pattern?
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