FAQ on Data Structure

AB+CD-* To convert the infix expression (A + B) * (C – D) into postfix form, you can use the shunting-yard algorithm or simply understand the rules of postfix notation, which involve placing operators after their operands. Here’s how you can convert (A + B) * (C – D) into postfix notation: Start with an … Read more

An expression in which operators follow the operands is known as postfix expression. The main benefit of this form is that there is no need to group sub-expressions in parentheses or to consider operator precedence. The expression “a + b” will be represented as “ab+” in postfix notation. A postfix expression, also known as a … Read more

Push: Increment the variable top so that it can refer to the next memory allocation Copy the item to the at the array index value equal to the top Repeat step 1 and 2 until stack overflows Pop: Store the topmost element into the an another variable Decrement the value of the top Return the … Read more

PUSH and POP operations specify how data is stored and retrieved in a stack. PUSH: PUSH specifies that data is being “inserted” into the stack. POP: POP specifies data retrieval. It means that data is being deleted from the stack. In the context of data structures, PUSH and POP are fundamental operations typically associated with … Read more

Overflow occurs when top = Maxsize -1 In the context of a data structure interview question, the term “stack overflow” typically refers to the situation where a program’s call stack exceeds its maximum allowed size. This can happen due to excessive recursion or too many nested function calls. The correct answer to a question about … Read more