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-rw-r--r--challenge-339/deadmarshal/java/Ch1.java17
1 files changed, 17 insertions, 0 deletions
diff --git a/challenge-339/deadmarshal/java/Ch1.java b/challenge-339/deadmarshal/java/Ch1.java
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+++ b/challenge-339/deadmarshal/java/Ch1.java
@@ -0,0 +1,17 @@
+import java.util.Arrays;
+
+public class Ch1 {
+ public static void main(String[] args) {
+ System.out.println(max_diff(new int[] { 5, 9, 3, 4, 6 }));
+ System.out.println(max_diff(new int[] { 1, -2, 3, -4 }));
+ System.out.println(max_diff(new int[] { -3, -1, -2, -4 }));
+ System.out.println(max_diff(new int[] { 10, 2, 0, 5, 1 }));
+ System.out.println(max_diff(new int[] { 7, 8, 9, 10, 10 }));
+ }
+
+ private static int max_diff(int[] arr) {
+ Arrays.sort(arr);
+ final int n = arr.length;
+ return arr[n - 1] * arr[n - 2] - arr[0] * arr[1];
+ }
+}