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  1. Prepare
  2. Python
  3. Strings
  4. Merge the Tools!
  5. Discussions

Merge the Tools!

  • FJSevilla
     + 66 comments

    I love Python for things like this:

    Python 3.x:

    S, N = input(), int(input()) 
for part in zip(*[iter(S)] * N):
    d = dict()
    print(''.join([ d.setdefault(c, c) for c in part if c not in d ]))

    setdefault method returns the key value available in the dictionary and if given key is not available then it will provided default value and adds it to the dictionary.