Open danielpaul opened 3 years ago
This problem was asked by Uber.
One way to unlock an Android phone is through a pattern of swipes across a 1-9 keypad.
For a pattern to be valid, it must satisfy the following:
For example, 4 - 2 - 1 - 7 is a valid pattern, whereas 2 - 1 - 7 is not.
4 - 2 - 1 - 7
2 - 1 - 7
Write a function that would validate if a passed array of numbers is valid or not.
Input examples:
validate([4, 2, 1, 7]) -> true validate([2, 1, 7]) -> false
This problem was asked by Uber.
One way to unlock an Android phone is through a pattern of swipes across a 1-9 keypad.
For a pattern to be valid, it must satisfy the following:
For example,
4 - 2 - 1 - 7is a valid pattern, whereas2 - 1 - 7is not.Write a function that would validate if a passed array of numbers is valid or not.
Input examples: