【题目描述】

输出有效的括号深度


【代码】

package com.company;
import java.util.*;

class Solution {

public void getKuoHao(String str) {
Stack<Character> stack = new Stack<>();
int max = 0;
int count = 0;
for (int i = 0; i < str.length(); i++) {
char c = str.charAt(i);
if (c == '('){
stack.push(c);
}else if (c == ')' && stack.search('(') == 1 ){
count++;
max = Math.max(max, count);
stack.pop();
if (stack.size() == 0){
count = 0;
}
}
}
System.out.println(max);
}
}
public class Test {
public static void main(String[] args) {
String sss = "()()()"; // 输出1
String str3 = "()(())()"; // 输出2

new Solution().getKuoHao(sss);
new Solution().getKuoHao(str3);
}
}