Data commit

Task/Range-extraction/Java/range-extraction.java

@@ -0,0 +1,22 @@
+public class RangeExtraction {
+
+    public static void main(String[] args) {
+        int[] arr = {0, 1, 2, 4, 6, 7, 8, 11, 12, 14,
+            15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 27, 28, 29, 30, 31, 32, 33, 35, 36,
+            37, 38, 39};
+
+        int len = arr.length;
+        int idx = 0, idx2 = 0;
+        while (idx < len) {
+            while (++idx2 < len && arr[idx2] - arr[idx2 - 1] == 1);
+            if (idx2 - idx > 2) {
+                System.out.printf("%s-%s,", arr[idx], arr[idx2 - 1]);
+                idx = idx2;
+            } else {
+                for (; idx < idx2; idx++)
+                    System.out.printf("%s,", arr[idx]);
+            }
+        }
+    }
+}