LeetCode中Valid Parentheses的JAVA實現

標籤：

先上題目：

Given a string containing just the characters ‘(‘, ‘)‘, ‘{‘, ‘}‘, ‘[‘ and ‘]‘, determine if the input string is valid.

The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]" and "([)]" are not.

自己寫的答案，測試通過

public class Solution {
    public boolean isValid(String s) {
        
LinkedList<Character> stack = new LinkedList<Character>();

for(char c:s.toCharArray())
{
if(!stack.isEmpty())
{
if(stack.peek()==40&&c==41||stack.peek()==91&&c==93||stack.peek()==123&&c==125)
{
stack.pop();
}else
{
stack.push(c);
}
}else
{
stack.push(c);
}

}
return stack.isEmpty()?true:false;
    }
}

LeetCode中Valid Parentheses的JAVA實現