diff --git a/codes/c/chapter_stack_and_queue/array_stack.c b/codes/c/chapter_stack_and_queue/array_stack.c
index 807c9bca4..39e1cff4d 100644
--- a/codes/c/chapter_stack_and_queue/array_stack.c
+++ b/codes/c/chapter_stack_and_queue/array_stack.c
@@ -90,11 +90,11 @@ int main() {
 
     /* 获取栈的长度 */
     int size = stack->size;
-    printf("栈的长度 size =  %d\n", size);
+    printf("栈的长度 size = %d\n", size);
 
     /* 判断是否为空 */
     bool empty = isEmpty(stack);
-    printf("栈是否为空 = %stack\n", empty ? "true" : "false");
+    printf("栈是否为空 = %s\n", empty ? "true" : "false");
 
     // 释放内存
     delArrayStack(stack);
diff --git a/en/docs/chapter_array_and_linkedlist/summary.md b/en/docs/chapter_array_and_linkedlist/summary.md
index 299d5af0e..73b021c7a 100644
--- a/en/docs/chapter_array_and_linkedlist/summary.md
+++ b/en/docs/chapter_array_and_linkedlist/summary.md
@@ -74,7 +74,7 @@ On the other hand, linked lists are primarily necessary for binary trees and gra
 
 **Q**: Does initializing a list `res = [0] * self.size()` result in each element of `res` referencing the same address?
 
-No. However, this issue arises with two-dimensional arrays, for example, initializing a two-dimensional list `res = [[0] * self.size()]` would reference the same list `[0]` multiple times.
+No. However, this issue arises with two-dimensional arrays, for example, initializing a two-dimensional list `res = [[0]] * self.size()` would reference the same list `[0]` multiple times.
 
 **Q**: In deleting a node, is it necessary to break the reference to its successor node?