Desi QnA Interview Questions and Answers

2sum problem with the best time complexity

Q1. General question about life and nothing
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Q1. Dsa question about stacks
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Q2. Show the operations of the stack
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A stack is a data structure that follows the Last In First Out (LIFO) principle.
• Operations of a stack include push (add an element to the top), pop (remove the top element), peek (view the top element without removing it), and isEmpty (check if the stack is empty).

• Example: If we push elements 1, 2, and 3 onto a stack, the stack will look like [3, 2, 1].

• If we pop the top element, the stack will become [2, 1].

• Peeking at ...read more
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