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| 1 | package reddit.easy; | |
| 2 | ||
| 3 | import java.util.ArrayList; | |
| 4 | import java.util.Arrays; | |
| 5 | public class ShortTornNumber {
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| 6 | ||
| 7 | static ArrayList<Integer> ints = new ArrayList<>(); | |
| 8 | ||
| 9 | public static void main(String[] args){
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| 10 | for(int i = 1000 ; i < 10000 ; i++) | |
| 11 | ints.add(i); | |
| 12 | ||
| 13 | ints.stream() | |
| 14 | .filter(i -> {char[] c = Integer.toString(i).toCharArray();
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| 15 | Arrays.sort(c); | |
| 16 | for(int it = 0; it < c.length - 1; it++) | |
| 17 | if(c[it] == c[it+1]) return false; | |
| 18 | return true;}) | |
| 19 | .filter(i -> {String[] n = Integer.toString(i).split("(?<=\\G..)");
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| 20 | int s = Integer.parseInt(n[0]) + Integer.parseInt(n[1]); | |
| 21 | return (s * s == i);}) | |
| 22 | .forEach(i -> System.out.println(i)); | |
| 23 | } | |
| 24 | ||
| 25 | } |
