From b8b18e255685fdf2922fb12d95ae31ef90553590 Mon Sep 17 00:00:00 2001
From: Asmitha B <youremail@example.com>
Date: Mon, 12 Jan 2026 15:36:46 +0530
Subject: [PATCH] Handle negative input in perfect square checks

---
 src/main/java/com/thealgorithms/maths/PerfectSquare.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/main/java/com/thealgorithms/maths/PerfectSquare.java b/src/main/java/com/thealgorithms/maths/PerfectSquare.java
index e9318bd7d805..aec43062121a 100644
--- a/src/main/java/com/thealgorithms/maths/PerfectSquare.java
+++ b/src/main/java/com/thealgorithms/maths/PerfectSquare.java
@@ -15,6 +15,9 @@ private PerfectSquare() {
      * <tt>false</tt>
      */
     public static boolean isPerfectSquare(final int number) {
+        if (number < 0) {
+            return false;
+        }
         final int sqrt = (int) Math.sqrt(number);
         return sqrt * sqrt == number;
     }
@@ -27,6 +30,9 @@ public static boolean isPerfectSquare(final int number) {
      * {@code false}
      */
     public static boolean isPerfectSquareUsingPow(long number) {
+        if (number < 0) {
+            return false;
+        }
         long a = (long) Math.pow(number, 1.0 / 2);
         return a * a == number;
     }