In a stack implemented using arrays, what is the time complexity for pushing and popping elements?
- O(1) for both pushing and popping
- O(1) for pushing and O(n) for popping
- O(n) for pushing and O(1) for popping
- O(n) for pushing and popping
In a stack implemented using arrays, both pushing and popping elements have a time complexity of O(1). This is because arrays provide constant-time access to elements by their index. Therefore, regardless of the size of the stack, pushing and popping operations can be performed in constant time, making arrays an efficient choice for stack implementations.
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