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MCQ Answer
The data structure required to check whether an expression contains a balanced parenthesis is?
The data structure required to check whether an expression contains a balanced parenthesis is?
Topic : Stack
A.
Stack
B.
Queue
C.
Array
D.
Tree
Correct Answer is :
A. Stack
Explanation
The stack is a simple data structure in which elements are added and removed based on the LIFO principle. Open parenthesis is pushed into the stack and a closed parenthesis pops out elements till the top element of the stack is its corresponding open parenthesis. If the stack is empty, parenthesis is balanced otherwise it is unbalanced.
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