Fix AbsoluteMin.getMinValue to compare by absolute magnitude, not raw value

Author: kush2439p

src/main/java/com/thealgorithms/maths/AbsoluteMin.java

@@ -1,7 +1,5 @@
 package com.thealgorithms.maths;
 
-import java.util.Arrays;
-
 public final class AbsoluteMin {
     private AbsoluteMin() {
     }
@@ -17,10 +15,16 @@ public static int getMinValue(int... numbers) {
             throw new IllegalArgumentException("Numbers array cannot be empty");
         }
 
-        var absMinWrapper = new Object() { int value = numbers[0]; };
-
-        Arrays.stream(numbers).skip(1).filter(number -> Math.abs(number) <= Math.abs(absMinWrapper.value)).forEach(number -> absMinWrapper.value = Math.min(absMinWrapper.value, number));
-
-        return absMinWrapper.value;
+        int minValue = numbers[0];
+        for (int number : numbers) {
+            long absoluteNumber = Math.abs((long) number);
+            long absoluteMinValue = Math.abs((long) minValue);
+            if (absoluteNumber < absoluteMinValue
+                || (absoluteNumber == absoluteMinValue && number < minValue)) {
+                // For equal absolute values, consistently choose the numerically smaller value.
+                minValue = number;
+            }
+        }
+        return minValue;
     }
 }

src/test/java/com/thealgorithms/maths/AbsoluteMinTest.java

@@ -9,8 +9,11 @@ public class AbsoluteMinTest {
 
     @Test
     void testGetMinValue() {
+        assertEquals(2, AbsoluteMin.getMinValue(-5, 2));
         assertEquals(0, AbsoluteMin.getMinValue(4, 0, 16));
         assertEquals(-2, AbsoluteMin.getMinValue(3, -10, -2));
+        assertEquals(-2, AbsoluteMin.getMinValue(-5, -2));
+        assertEquals(2, AbsoluteMin.getMinValue(5, 2));
     }
 
     @Test
@@ -21,6 +24,7 @@ void testGetMinValueWithNoArguments() {
 
     @Test
     void testGetMinValueWithSameAbsoluteValues() {
+        assertEquals(-3, AbsoluteMin.getMinValue(-3, 3));
         assertEquals(-5, AbsoluteMin.getMinValue(-5, 5));
         assertEquals(-5, AbsoluteMin.getMinValue(5, -5));
     }