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