From 8a0307468a4e57aa6b31bd189f5b2f47d4b3ea88 Mon Sep 17 00:00:00 2001 From: Ali Date: Mon, 2 Jun 2025 18:33:15 +0330 Subject: TWC324 --- challenge-324/deadmarshal/java/Ch1.java | 20 ++++++++++++++++++++ challenge-324/deadmarshal/java/Ch2.java | 18 ++++++++++++++++++ 2 files changed, 38 insertions(+) create mode 100644 challenge-324/deadmarshal/java/Ch1.java create mode 100644 challenge-324/deadmarshal/java/Ch2.java (limited to 'challenge-324/deadmarshal/java') diff --git a/challenge-324/deadmarshal/java/Ch1.java b/challenge-324/deadmarshal/java/Ch1.java new file mode 100644 index 0000000000..80e1014aa1 --- /dev/null +++ b/challenge-324/deadmarshal/java/Ch1.java @@ -0,0 +1,20 @@ +import java.util.Arrays; + +public class Ch1 { + public static void main(String[] args) { + System.out.println(Arrays.deepToString(twod_array(new int[]{1, 2, 3, 4}, 2, 2))); + System.out.println(Arrays.deepToString(twod_array(new int[]{1, 2, 3}, 1, 3))); + System.out.println(Arrays.deepToString(twod_array(new int[]{1, 2, 3, 4}, 4, 1))); + } + + private static int[][] twod_array(int[] arr, int r, int c) { + if (r * c != arr.length) return new int[0][0]; + int[][] res = new int[r][c]; + for (int i = 0; i < r; ++i) { + for (int j = 0; j < c; ++j) { + res[i][j] = arr[i * c + j]; + } + } + return res; + } +} 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; + } +} + -- cgit