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Copy pathBOJ_4949.java
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54 lines (43 loc) · 1.38 KB
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package baekjoon.silver;
import java.io.*;
import java.util.Stack;
public class BOJ_4949 {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
Stack<Character> stack_1 = new Stack<>(); // (,)
Stack<Character> stack_2 = new Stack<>(); // [,]
while(true) {
String line = br.readLine();
// 종료 조건
if(line.equals("."))
break;
bw.write(isBalanced(line));
}
bw.flush();
bw.close();
}
public static String isBalanced(String line) {
Stack<Character> stack = new Stack<>();
boolean flag = true;
for(char c : line.toCharArray()) {
if(c == '(' || c == '[')
stack.push(c);
else if (c == ')') {
if (stack.isEmpty() || stack.pop() != '(') {
flag = false;
break;
}
}
else if(c == ']') {
if(stack.isEmpty() || stack.pop() != '[') {
flag = false;
break;
}
}
}
if(!stack.isEmpty())
flag = false;
return flag ? "yes\n" : "no\n";
}
}