issue #30 SmartNumber

sowon-dev · sowon-dev · commit 4757ac805e99 · 2021-03-28T02:51:22.000+09:00
diff --git a/src/hackerrank/SmartNumber.java b/src/hackerrank/SmartNumber.java
@@ -2,13 +2,19 @@
 
 public class SmartNumber {
   public static boolean isSmartNumber(int num) {
+    // &#51452;&#50612;&#51652; &#49688;&#51032; &#51228;&#44273;&#44540;&#51032; &#44079;&#49688;&#44032; &#54848;&#49688;&#47732; YES, &#51677;&#49688;&#47732; NO&#47484; &#52636;&#47141;&#54616;&#45716; &#47928;&#51228;
+    // &#51312;&#44148;: &#51452;&#50612;&#51652; &#53076;&#46300;&#51473; &#54620; &#51460;&#47564; &#48148;&#44992; &#44163;
     int val = (int) Math.sqrt(num);
-    if(num / val == 1)
+    if(val*val == num)
       return true;
     return false;
   }
 
   public static void main(String[] args) {
-    System.out.println(isSmartNumber(4));
+    System.out.println(isSmartNumber(1)+", true=Yes=&#54848;&#49688;");
+    System.out.println(isSmartNumber(2)+", false=NO=&#51677;&#49688;");
+    System.out.println(isSmartNumber(7)+", false=NO=&#51677;&#49688;");
+    System.out.println(isSmartNumber(9)+", true=YES=&#54848;&#49688;");
+    System.out.println(isSmartNumber(169)+", true=YES=&#54848;&#49688;");
   }
 }
