From c04cf6be6621e9be28c104d6fe295b71b0699fb8 Mon Sep 17 00:00:00 2001
From: deadmarshal <adeadmarshal@gmail.com>
Date: Tue, 4 Feb 2025 20:32:22 +0330
Subject: TWC307

---
 challenge-307/deadmarshal/java/Ch1.java | 21 +++++++++++++++++++++
 challenge-307/deadmarshal/java/Ch2.java | 24 ++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 challenge-307/deadmarshal/java/Ch1.java
 create mode 100644 challenge-307/deadmarshal/java/Ch2.java

(limited to 'challenge-307/deadmarshal/java')

diff --git a/challenge-307/deadmarshal/java/Ch1.java b/challenge-307/deadmarshal/java/Ch1.java
new file mode 100644
index 0000000000..091b91b204
--- /dev/null
+++ b/challenge-307/deadmarshal/java/Ch1.java
@@ -0,0 +1,21 @@
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class Ch1 {
+  public static void main(String[] args) {
+    System.out.println(check_order(new int[]{5, 2, 4, 3, 1}));
+    System.out.println(check_order(new int[]{1, 2, 1, 1, 3}));
+    System.out.println(check_order(new int[]{3, 1, 3, 2, 3}));
+  }
+
+  private static List<Integer> check_order(int[] arr) {
+    List<Integer> ret = new ArrayList<>();
+    int[] sorted = Arrays.copyOf(arr, arr.length);
+    Arrays.sort(sorted);
+    for (int i = 0; i < sorted.length; ++i) {
+      if (sorted[i] != arr[i]) ret.add(i);
+    }
+    return ret;
+  }
+}
diff --git a/challenge-307/deadmarshal/java/Ch2.java b/challenge-307/deadmarshal/java/Ch2.java
new file mode 100644
index 0000000000..a4ef4c615d
--- /dev/null
+++ b/challenge-307/deadmarshal/java/Ch2.java
@@ -0,0 +1,24 @@
+import java.util.Objects;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class Ch2 {
+  public static void main(String[] args) {
+    System.out.println(
+      find_anagrams(new String[]{"acca", "dog", "god", "perl", "repl"}));
+    System.out.println(
+      find_anagrams(new String[]{"abba", "baba", "aabb", "ab", "ab"}));
+  }
+
+  private static int find_anagrams(String[] arr) {
+    int sum = 1;
+    for (int i = 0; i < arr.length; ++i) {
+      arr[i] = Stream.of(arr[i].split(""))
+        .sorted()
+        .collect(Collectors.joining());
+    }
+    for (int i = 1; i < arr.length; ++i)
+      if (!Objects.equals(arr[i - 1], arr[i])) sum++;
+    return sum;
+  }
+}
-- 
cgit