What will this given code do?def POP(stack): if len(stack)==0: print(“Underflow”) else: stack.pop()OptionsWill delete all the elements from given stackWill delete last element from given stackWill delete first element from given stackWill produce error as no index is passed to pop()
Question
What will this given code do?def POP(stack): if len(stack)==0: print(“Underflow”) else: stack.pop()OptionsWill delete all the elements from given stackWill delete last element from given stackWill delete first element from given stackWill produce error as no index is passed to pop()
Solution
The given code will delete the last element from the given stack.
Here's a step-by-step explanation:
- The function
POP(stack)is defined, which takes a liststackas an argument. - Inside the function, it first checks if the length of the stack is 0. If it is, it prints "Underflow". This is a condition to handle the case when the stack is empty, and there's nothing to pop.
- If the stack is not empty (i.e., its length is not 0), it calls the
pop()method on the stack. In Python, thepop()method removes and returns the last item in the list. Since no index is passed topop(), it defaults to -1, which means the last item in the list. - So, the function will remove the last item from the stack.
Therefore, the correct option is "Will delete last element from given stack".
Similar Questions
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Which method is used to remove and return the last element from an array in Python?Optionspop()remove()delete()discard()
The pop operation removes an element from the top of the stack.a.FALSEb.TRUE
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