Update Solution.kt

Author: javadev

src/main/kotlin/g0301_0400/s0391_perfect_rectangle/Solution.kt

@@ -58,14 +58,14 @@ class Solution {
     }
 
     private class Point(val x: Int, val y: Int) {
-        override fun equals(o: Any?): Boolean {
-            if (this === o) {
+        override fun equals(other: Any?): Boolean {
+            if (this === other) {
                 return true
             }
-            if (o == null || javaClass != o.javaClass) {
+            if (other == null || javaClass != other.javaClass) {
                 return false
             }
-            val point = o as Point
+            val point = other as Point
             return x == point.x && y == point.y
         }