NTA-NET (UGC-NET) Computer Science & Applications (87) Data and File Structures-Stacks Study Material (Page 5 of 5)
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Application of Stack II: Balanced Parentheses Using Stack, the Importance of Stack in Function Call and Recursion, Backtracking
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Balanced Parentheses Using Stack
One of the most important applications of stacks is to check if the parentheses are balanced in a given expression. The compiler generates an error if the parentheses are not matched.
Here are some of the balanced and unbalanced expressions:
Consider the Above-Mentioned Unbalanced Expressions
- The first expression (a + b is unbalanced as there is no closing parenthesis given.
- The second expression is unbalanced, as the closed round parenthesis is not given.
- The third expression is unbalanced as the nesting of square p…
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