style: apply clang-format

Author: trishajp38-source

src/main/java/com/thealgorithms/divideandconquer/Factorial.java

@@ -37,5 +37,3 @@ public static long factorial(long n) {
         return result;
     }
 }
-
-

src/test/java/com/thealgorithms/divideandconquer/FactorialTest.java

@@ -8,7 +8,6 @@
 import org.junit.jupiter.api.Test;
 
 public class FactorialTest {
-
     // --------------------------------------------------------
     // SECTION 1: Basic Correctness Tests
     // --------------------------------------------------------
@@ -25,7 +24,7 @@ void testFactorialOfZero() {
 
     @Test
     void testNegativeInputThrowsException() {
-        assertThrows(IllegalArgumentException.class, () -> Factorial.factorial(-5));
+        assertThrows(IllegalArgumentException.class, () -> { Factorial.factorial(-5); });
     }
 
     // --------------------------------------------------------
@@ -47,18 +46,17 @@ void testLargeInputPerformance() {
     // --------------------------------------------------------
 
     /**
-     * Local copy of the original recursive implementation used only for comparing performance inside
-     * the test.
+     * Local copy of the original recursive implementation
+     * used only for comparing performance inside the test.
      */
     private long recursiveFactorial(long n) {
         if (n < 0) {
             throw new IllegalArgumentException("Negative input not allowed");
         }
         if (n == 0 || n == 1) {
             return 1;
-        } else {
-            return n * recursiveFactorial(n - 1);
         }
+        return n * recursiveFactorial(n - 1);
     }
 
     @Test
@@ -74,9 +72,7 @@ void testIterativeFasterThanRecursive() {
         long endIter = System.nanoTime();
 
         assertEquals(recResult, iterResult);
-        assertTrue(
-                endIter - startIter < endRec - startRec,
-                "Iterative version should outperform recursive version");
+        assertTrue(endIter - startIter < endRec - startRec, "Iterative version should outperform recursive version");
     }
 
     @Test