diff options
Diffstat (limited to 'challenge-324/deadmarshal/java/Ch2.java')
| -rw-r--r-- | challenge-324/deadmarshal/java/Ch2.java | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/challenge-324/deadmarshal/java/Ch2.java b/challenge-324/deadmarshal/java/Ch2.java new file mode 100644 index 0000000000..5236df8664 --- /dev/null +++ b/challenge-324/deadmarshal/java/Ch2.java @@ -0,0 +1,18 @@ +public class Ch2 { + public static void main(String[] args) { + System.out.println(total_xor(new int[]{1, 3})); + System.out.println(total_xor(new int[]{5, 1, 6})); + System.out.println(total_xor(new int[]{3, 4, 5, 6, 7, 8})); + } + + private static int total_xor(int[] arr) { + int n = arr.length, res = 0; + for (int i = 0; i < 1 << n; ++i) { + int s = 0; + for (int j = 0; j < n; ++j) if ((i >> j & 1) == 1) s ^= arr[j]; + res += s; + } + return res; + } +} + |
