add xor

main/arr_xor/head.h

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define N 3
+#define LEN 3
+
+typedef struct Node {
+    struct Node* next;
+    struct Node* prev;
+    char name[LEN];
+} Node;
+
+void node_print(Node* n);
+Node get(Node* node, int n);
+Node* xor_find(Node* n1, Node* n2);
+Node* add_tail(Node* n, char s[]);