数据结构-线性表

Chapter11/ds/line/list/arr/sqlist.c

@@ -0,0 +1,131 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "sqlist.h"
+
+sqlist *sqlist_create()
+{
+    sqlist *me;
+
+    me = malloc(sizeof(*me));
+    if (NULL == me)
+        return NULL;
+
+    me->last = -1;
+
+    return me;
+}
+
+void sqlist_create1(sqlist **ptr)
+{
+    *ptr = malloc(sizeof(**ptr));
+    if (NULL == *ptr)
+        return;
+
+    (*ptr)->last = -1;
+    return;
+}
+
+int sqlist_insert(sqlist *me, int i, datatype *data)
+{
+    int j;
+
+    if (DATASIZE - 1 == me->last)
+        return -1;
+
+    if (i < 0 || i > me->last + 1)
+        return -2;
+
+    for (j = me->last; i <= j; j--)
+    {
+        me->data[j + 1] = me->data[j];
+    }
+
+    // TODO: 仅限常规数据结构
+    me->data[i] = *data;
+    me->last++;
+
+    return 0;
+}
+
+int sqlist_delete(sqlist *me, int i)
+{
+    int j;
+
+    if (i < 0 || i > me->last)
+        return -1;
+
+    for (j = i + 1; j <= me->last; j++)
+    {
+        me->data[j - 1] = me->data[j];
+    }
+
+    me->last--;
+
+    return 0;
+}
+
+int sqlist_find(sqlist *me, datatype *data)
+{
+    if (0 == sqlist_isempty(me))
+        return -1;
+
+
+    for (int i = 0; i < me->last; i++)
+    {
+        if (me->data[i] == *data)
+            return i;
+    }
+    return -2;
+}
+
+int sqlist_isempty(sqlist *me)
+{
+    if (-1 == me->last)
+        return 0;
+    return -1;
+}
+
+int sqlist_setempty(sqlist *me)
+{
+    me->last = -1;
+    return 0;
+}
+
+int sqlist_getnum(sqlist *me)
+{
+    return me->last + 1;
+}
+
+void sqlist_display(sqlist *me)
+{
+    if (-1 == me->last)
+        return;
+    for (int i = 0; i <= me->last; i++)
+    {
+        printf("%d ", me->data[i]);
+    }
+    printf("\n");
+}
+
+int sqlist_destroy(sqlist *me)
+{
+    free(me);
+    return 0;
+}
+
+int sqlist_union(sqlist *list1, sqlist *list2)
+{
+    // list1 -> 12 23 34 45 56
+    // list2 -> 78 89 56 23 10
+
+    int i = 0;
+
+    for (i = 0; i <= list2->last; i++)
+    {
+        if (sqlist_find(list1, &list2->data[i]) < 0)
+        {
+            sqlist_insert(list1, 0, &list2->data[i]);
+        }
+    }
+}