package leetcode;

import java.util.List;

/**
 * https://leetcode.com/problems/positions-of-large-groups/
 */
public class Problem830 {
    public List<List<Integer>> largeGroupPositions(String S) {
        return null;
    }

    public static void main(String[] args) {
        Problem830 prob = new Problem830();
    }
}

@@ -189,24 +189,40 @@
 String S) %7B%0A
+        // TODO%0A
         retu
@@ -326,16 +326,262 @@
 m830();%0A
+        System.out.println(prob.largeGroupPositions(%22abbxxxxzzy%22)); // %5B%5B3,6%5D%5D%0A        System.out.println(prob.largeGroupPositions(%22abc%22)); // %5B%5D%0A        System.out.println(prob.largeGroupPositions(%22abcdddeeeeaabbbcd%22)); // %5B%5B3,5%5D,%5B6,9%5D,%5B12,14%5D%5D%0A
     %7D%0A%7D%0A

Update problem 830