Solutions for week 138, part 2 in 14 languages.

1 files changed, 42 insertions, 0 deletions

diff --git a/challenge-138/abigail/java/ch-2.java b/challenge-138/abigail/java/ch-2.java
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+++ b/challenge-138/abigail/java/ch-2.java
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+//
+// See ../README.md
+//
+
+//
+// Run as: ln ch-2.java ch2.java; javac ch2.java; java ch2 < input-file
+//
+
+import java.util.*;
+import java.lang.*;
+
+public class ch2 {
+    public static boolean can_split (long target, long number) {
+        if (target >  number || target < 0) {return false;}
+        if (target == number)               {return true;}
+
+        long pow_10 = 10;
+
+        while (pow_10 <= number) {
+            if (can_split (target - (number % pow_10), number / pow_10)) {
+                return true;
+            }
+            pow_10 *= 10;
+        }
+
+        return false;
+    }
+
+    public static void main (String [] args) {
+        Scanner scanner = new Scanner (System . in);
+        while (scanner . hasNextInt ()) {
+            int number = scanner . nextInt ();
+            int sqrt   = (int) Math . round (Math . sqrt (number));
+            if (number > 1 && can_split (sqrt, number)) {
+                System . out . println (1);
+            }
+            else {
+                System . out . println (0);
+            }
+        }
+    }
+}