Method addSpaces

-68-Text_Justification/Code.java:5–8

(StringBuilder str, int count)

public class Main {
    static class Solution {
        void addSpaces(StringBuilder str, int count) {
            for (int i = 0; i < count; i++)
                str.append(' ');
        }

        public List<String> fullJustify(String[] words, int maxWidth) {
            List<String> ans = new ArrayList<>();