What are the logics possible to loop a string into a grid?
For example if I wanted 'water' to print
water
aterw
terwa
erwat
rwate
I was trying something along the lines of,
word = 'water'
for number, letter in enumerate(word):
if number < len(word):
print a + word[1:] + word[:1]
I do not comprehend how i can achieve this as you can see from my attempt. Thanks for any help.
In [2]: word = 'water'
...: for i in range(len(word)):
...: print(word[i:] + word[:i])
water
aterw
terwa
erwat
rwate
The i loops over all possible indexes, takes the suffix starting at that index and prepends it to the string, obtaining all possible rotations.
You can do
word = 'water'
for i in xrange(len(word)):
print word[i:] + word[:i]
Use collections.deque, it has a rotate method that will do your job.
Rotate the deque
nsteps to the right. Ifnis negative, rotate to the left. Rotating one step to the right is equivalent to:d.appendleft(d.pop())
Demo:
from collections import deque
d = deque('water')
for _ in xrange(len(d)):
print ''.join(d)
d.rotate(-1)
output:
water
aterw
terwa
erwat
rwate
deque :-)
rotate and print lines and use -1 as "step". -0 for the complexity of the answer(the OP seem to be completely new to python and programming...)