#### Determining if a String of Parentheses is Balanced

This technical problem deals with determining whether a string of parentheses is balanced. A string is considered balanced if there are an equal number of open and closed parentheses, and each open parentheses is matched with a closed parentheses.

#### Problem

```Given a string of parentheses, write a function to determine whether the string is balanced. A string is balanced if there are an equal number of open and closed parentheses, and each open parentheses is matched with a closed parentheses.
Example input: "((()))"
Example output: true
Example input: "()())"
Example output: false```

#### Solution

This solution is in JavaScript. Our A.I. can create solutions in multiple languages.
by kayakane
```function isBalanced(str) {
let open = 0;
let closed = 0;
for (let i = 0; i < str.length; i++) {
if (str[i] === "(") {
open++;
} else if (str[i] === ")") {
closed++;
}
}
return open === closed;
}

// This solution is optimal because it only iterates through the string once, and it does not use any extra space.```

A.I. Evaluation of the Solution

This solution is correct and demonstrates a good understanding of the problem. The approach is simple and efficient, and the code is clean and easy to read.

Evaluated at: 2022-11-26 02:16:54