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Python: Moves the specified amount of elements to the start of the list

Python List: Exercise - 263 with Solution

Write a Python program to move the specified number of elements to the start of the given list.

Use slice notation to get the two slices of the list and combine them before returning.

Sample Solution:

Python Code:

def move_start(nums, offset):
  return nums[-offset:] + nums[:-offset] 
print(move_start([1, 2, 3, 4, 5, 6, 7, 8], 3))
print(move_start([1, 2, 3, 4, 5, 6, 7, 8], -3))
print(move_start([1, 2, 3, 4, 5, 6, 7, 8], 8))
print(move_start([1, 2, 3, 4, 5, 6, 7, 8], -8))
print(move_start([1, 2, 3, 4, 5, 6, 7, 8], 7))
print(move_start([1, 2, 3, 4, 5, 6, 7, 8], -7))

Sample Output: 

[6, 7, 8, 1, 2, 3, 4, 5]
[4, 5, 6, 7, 8, 1, 2, 3]
[1, 2, 3, 4, 5, 6, 7, 8]
[1, 2, 3, 4, 5, 6, 7, 8]
[2, 3, 4, 5, 6, 7, 8, 1]
[8, 1, 2, 3, 4, 5, 6, 7]

Flowchart:

Flowchart: Moves the specified amount of elements to the start of the list.

Visualize Python code execution:

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Python Code Editor:

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Python: Tips of the Day

Returns True if the provided function returns True for every element in the list, False otherwise:

Example:

def tips_every(lst, fn=lambda x: x):
  return all(map(fn, lst))

print(tips_every([2, 4, 3], lambda x: x > 1))
print(tips_every([1, 2, 3]))

Output:

True
True