Given the following function header:
def triangles(n):
If n for example is 5, then the drawing would be like this:
*
* * *
* * * * *
* * *
*
Python, 12 lines
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Copy to clipboard1 2 3 4 5 6 7 8 9 10 11 12 | def triangles(n):
if not n & 1:
raise ValueError('n must be odd')
print_diamond(0, n, n >> 1)
def print_diamond(start, stop, midpoint):
if start < stop:
if start <= midpoint:
print(' ' * (midpoint - start) + '* ' * ((start << 1) + 1))
else:
print(' ' * (start - midpoint) + '* ' * ((stop - start << 1) - 1))
print_diamond(start + 1, stop, midpoint)
|
Tags: drawing
