diff --git a/code_link_2015.cpp b/code_link_2015.cpp
new file mode 100644
index 0000000..84351af
--- /dev/null
+++ b/code_link_2015.cpp
@@ -0,0 +1,44 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+typedef struct node {
+    int data;
+    struct node* link;
+}NODE;
+
+void create(NODE* p, int a[], int pos, int length) {
+    if (pos < length) {
+        p->data = a[pos];
+        p->link = (NODE*)malloc(sizeof(NODE));
+        p->link->data = INT_MIN;//用INT_MIN作为结束标志
+        create(p->link, a, pos + 1, length);
+    }
+}
+
+void deleteNode(NODE* p, int n, int length) {
+    int* a = (int*)malloc(sizeof(int) * (n + 1));
+    memset(a, 0, sizeof(int) * (n + 1));
+    NODE* pHead = p, * q;
+    a[p->data > 0 ? p->data : -p->data] = 1;
+    while (p->link != NULL && p->link->data != INT_MIN) {
+        int t = (p->link->data) > 0 ? p->link->data : -p->link->data;
+        if (a[t] == 1) {
+            q = p->link;
+            p->link = q->link;
+            free(q);
+        }
+        else {
+            a[t] = 1;
+            p = p->link;
+        }
+    }
+}
+
+int main() {
+    int a[] = { -5,5,9,17,5,5,5,-3,2,5 };
+    NODE pStart;
+    create(&pStart, a, 0, 10);
+    deleteNode(&pStart, 100, 10);
+    return 0;
+}
\ No newline at end of file