diff --git a/problems/0349.两个数组的交集.md b/problems/0349.两个数组的交集.md
index ed6a5d97..347d1094 100644
--- a/problems/0349.两个数组的交集.md
+++ b/problems/0349.两个数组的交集.md
@@ -143,9 +143,9 @@ class Solution {
         return resSet.stream().mapToInt(x -> x).toArray();
         
         //方法2：另外申请一个数组存放setRes中的元素,最后返回数组
-        int[] arr = new int[setRes.size()];
+        int[] arr = new int[resSet.size()];
         int j = 0;
-        for(int i : setRes){
+        for(int i : resSet){
             arr[j++] = i;
         }