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-rw-r--r--challenge-137/abigail/java/ch-2.java34
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diff --git a/challenge-137/abigail/java/ch-2.java b/challenge-137/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.*;
+
+public class ch2 {
+ static int reverse (int num) {
+ int rev = 0;
+ while (num > 0) {
+ rev *= 10;
+ rev += num % 10;
+ num /= 10;
+ }
+ return (rev);
+ }
+
+ static int ly (int n) {
+ return n >= 10000000 ? 1
+ : n == reverse (n) ? 0
+ : ly (n + reverse (n));
+ }
+
+ public static void main (String [] args) {
+ Scanner scanner = new Scanner (System . in);
+ while (scanner . hasNextInt ()) {
+ System . out . println (ly (scanner . nextInt ()));
+ }
+ }
+}