diff --git a/notes/代码可读性.md b/notes/代码可读性.md
index 1b1458d9..9d9618d1 100644
--- a/notes/代码可读性.md
+++ b/notes/代码可读性.md
@@ -272,17 +272,17 @@ var setFirstEmptyInput = function(new_value) {
 
 ```java
 int findClostElement(int[] arr) {
-    int clostIdx;
-    int clostDist = Interger.MAX_VALUE;
+    int clostIdx = -1;
+    int clostDist = Integer.MAX_VALUE;
     for (int i = 0; i < arr.length; i++) {
         int x = ...;
         int y = ...;
         int z = ...;
         int value = x * y * z;
-        int dist = Math.sqrt(Math.pow(value, 2), Math.pow(arr[i], 2));
+        int dist = (int) Math.sqrt(Math.pow(value, 2) + Math.pow(arr[i], 2));
         if (dist < clostDist) {
             clostIdx = i;
-            clostDist = value;
+            clostDist = dist;
         }
     }
     return clostIdx;
@@ -293,13 +293,13 @@ int findClostElement(int[] arr) {
 
 ```java
 public int findClostElement(int[] arr) {
-    int clostIdx;
-    int clostDist = Interger.MAX_VALUE;
+    int clostIdx = -1;
+    int clostDist = Integer.MAX_VALUE;
     for (int i = 0; i < arr.length; i++) {
         int dist = computDist(arr, i);
         if (dist < clostDist) {
             clostIdx = i;
-            clostDist = value;
+            clostDist = dist;
         }
     }
     return clostIdx;