Add AllConstruct algorithm (#5791)

src/test/java/com/thealgorithms/dynamicprogramming/AllConstructTest.java

@@ -0,0 +1,38 @@
+package com.thealgorithms.dynamicprogramming;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Arrays;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+public class AllConstructTest {
+
+    @Test
+    public void testAllConstructBasic() {
+        List<List<String>> expected = Arrays.asList(Arrays.asList("he", "l", "l", "o"));
+        List<List<String>> result = AllConstruct.allConstruct("hello", Arrays.asList("he", "l", "o"));
+        assertEquals(expected, result);
+    }
+
+    @Test
+    public void testAllConstructMultipleWays() {
+        List<List<String>> expected = Arrays.asList(Arrays.asList("purp", "le"), Arrays.asList("p", "ur", "p", "le"));
+        List<List<String>> result = AllConstruct.allConstruct("purple", Arrays.asList("purp", "p", "ur", "le", "purpl"));
+        assertEquals(expected, result);
+    }
+
+    @Test
+    public void testAllConstructNoWays() {
+        List<List<String>> expected = Arrays.asList();
+        List<List<String>> result = AllConstruct.allConstruct("abcdef", Arrays.asList("gh", "ijk"));
+        assertEquals(expected, result);
+    }
+
+    @Test
+    public void testAllConstructEmptyTarget() {
+        List<List<String>> expected = Arrays.asList(Arrays.asList());
+        List<List<String>> result = AllConstruct.allConstruct("", Arrays.asList("a", "b", "c"));
+        assertEquals(expected, result);
+    }
+}