<Programmers> 튜플(2019 카카오 개발자 겨울 인턴십)

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class Main {
public static void main(String[] args) {
String s = "{{4,2,3},{3},{2,3,4,1},{2,3}}";
int[] answer = {};
int k = 0;
int j = 0;
List<Integer> list = new ArrayList<>();
s = s.substring(1, s.length() - 1);
//{4,2,3},{3},{2,3,4,1},{2,3}
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '}') {
k++;
}
}
//k=4
String[] temp = new String[k];
for (int i = 0; i < k; i++) {
temp[i] = "";
}
//temp의 크기는 4
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '{' || s.charAt(i) == ',') {
continue;
} else if (s.charAt(i) == '}') {
j++;
} else {
temp[j] += s.charAt(i);
}
}


}
}