Valid Parentheses Problem Statement

Given a string 'STR' consisting solely of the characters “{”, “}”, “(”, “)”, “[” and “]”, determine if the parentheses are balanced.

Input:

The first line contains an integer 'T' representing the number of test cases. Each of the following T lines contains a string that you need to check for balanced parentheses.

Output:

For each test case, print a single line stating whether the string is balanced or not, with each result on a new line.

Example:

Input:

T = 2 STR = "{}[]()" STR = "{[}]"

Output:

"Balanced" "Not Balanced"

Constraints:

1

Question

Valid Parentheses Problem Statement

Given a string 'STR' consisting solely of the characters “{”, “}”, “(”, “)”, “[” and “]”, determine if the parentheses are balanced.

Input:

The first line contains an integer 'T' representing the number of test cases. Each of the following T lines contains a string that you need to check for balanced parentheses.

Output:

For each test case, print a single line stating whether the string is balanced or not, with each result on a new line.

Example:

Input:

T = 2
STR = "{}[]()"
STR = "{[}]"

Output:

"Balanced"
"Not Balanced"

Constraints:

1 <= T <= 10
1 <= N <= 10⁵

Note:

No need to print anything explicitly. Just implement the functionality to determine if the strings are balanced.

Accepted Answer

The task is to determine if a given string of parentheses is balanced or not.

Use a stack data structure to keep track of opening parentheses.
Iterate through the string and push opening parentheses onto the stack.
When encountering a closing parenthesis, pop from the stack and check if it matches the corresponding opening parenthesis.
If the stack is empty at the end or there are unmatched parentheses, the string is not balanced.
Otherwise, the string is balanced.

Valid Parentheses Problem Statement

Input:

Output:

Example:

Input:

Output:

Constraints:

Note:

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