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  1. Practice
  2. Data Structures
  3. Arrays
  4. Left Rotation
  5. Discussions

Left Rotation

  • florent_moiny + 1 comment

    Smart move to slice, hadn't thought about it. One way to improve your code (because I had the same issue): you need to use the generator expression 

    ' '.join(str(s) for s in (arr[d:] + arr[0:d]))

    because you applied the int function to your input. Don't do that and it becomes easier:

    n,d = map(int, raw_input().strip().split())
arr = raw_input().strip().split()
print ' '.join(arr[d:] + arr[0:d])

    Also, I wouldn't mind an if n == d, but that's just my point of view here.

    • freddie71010 + 0 comments

      Looks great, my python solution printed an unzipped list.

      # separates n and d values into two variables
n, d = [int(x) for x in input().split()]
# creates list of integers
lst = [int(x) for x in input().split()]

# From inner most function to outermost=============
# creates a list using lst[d:] and combines it with lst[0:d]
# unzips list (* = unzips)
# prints list
print(*(lst[d:]+lst[0:d]))