tvl-depot/scratch/data_structures_and_algorithms/string-reverse.py
William Carroll fabf1c9334 Tidy up structure of briefcase
I had a spare fifteen minutes and decided that I should tidy up my
monorepo. The work of tidying up is not finished; this is a small step in the
right direction.

TL;DR
- Created a tools directory
- Created a scratch directory (see README.md for more information)
- Added README.md to third_party
- Renamed delete_dotfile_symlinks -> symlinkManager
- Packaged symlinkManager as an executable symlink-mgr using buildGo
2020-02-12 16:58:29 +00:00

22 lines
383 B
Python

# swap :: Int -> Int -> [Char] -> IO ()
def swap(ia, iz, xs):
# handle swap when ia == iz
assert ia <= iz
xs[ia], xs[iz] = xs[iz], xs[ia]
# reverse :: [Char] -> IO ()
def reverse(xs):
ia = 0
iz = len(xs) - 1
while ia <= iz:
swap(ia, iz, xs)
ia += 1
iz -= 1
x = list("superduperpooper")
reverse(x)
print(x)
print("Tests pass")