Stack basics
If I want to implement a stack then what should the value of the pointer (top of stack) in case of an empty stack? 0 or -1?
CodingNinjas
author
2y
- I said -1 as normally we store non-negative numbers which include zero as well, so if 0 was top element of the stack and we called pop function then it will also return 0 so I went with -1.
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