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Copy pathBraces.java
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49 lines (36 loc) · 987 Bytes
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package hackerrank.expedia;
import java.util.Stack;
/**
* Created by nikoo28 on 2019-08-25 20:55
*/
class Braces {
// Complete the braces function below.
private static String[] braces(String[] values) {
String[] result = new String[values.length];
int idx = 0;
for (String value : values) {
if (isValid(value)) {
result[idx] = "YES";
} else
result[idx] = "NO";
idx++;
}
return result;
}
private static boolean isValid(String s) {
Stack<Character> stack = new Stack<>();
for (char c : s.toCharArray()) {
if (c == '(') stack.push(')');
else if (c == '{') stack.push('}');
else if (c == '[') stack.push(']');
else if (stack.isEmpty() || stack.pop() != c)
return false;
}
return stack.isEmpty();
}
public static void main(String[] args) {
Braces braces = new Braces();
String[] br = {"{}[]()", "{[}]}"};
System.out.println(braces.braces(br));
}
}