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In a stack, if a user tries to remove an element from an empty stack it is called _________(a) Underflow(b) Empty collection(c) Overflow(d) Garbage CollectionThe above asked question is from Stack Operations topic in section Abstract Data Types of Data Structures & Algorithms IThis question was addressed to me in a job interview. |
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Answer» RIGHT choice is (a) Underflow The best I can EXPLAIN: Underflow occurs when the user performs a pop operation on an empty STACK. Overflow occurs when the stack is full and the user performs a PUSH operation. Garbage Collection is used to recover the MEMORY occupied by objects that are no longer used. |
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