leetcode

2241. Design an ATM Machine

Solution code

deposit

_n =

banknotes

= 5_

Time complexity: O(1)

Space complexity: O(1)

withdraw

_n =

banknotes

= 5_

Time complexity: O(1)

Space complexity: O(1)

Runtime 58 ms
Beats 51.49%

Memory 48.16 MB
Beats 83.39%