标签：动态顺序表
// 动态顺序表
#pragma once
#define __SEQ_LIST__
#ifdef __SEQ_LIST__
#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <malloc.h>
typedef int DataType;
#define DEFAULT_CAPICITY 3
typedef struct SeqList
{
DataType* array; // 数据块指针
size_t size; // 当前的有效数据个数
size_t capicity; // 容量
}SeqList;
//typedef struct SeqList SeqList;
typedef enum Tag
{
TRUE, // 真
FALSE, // 假
}Tag;
typedef struct FindRet
{
Tag isFind; // 是否找到的标示
size_t index; // 找到数据的下标
}FindRet;
// 初始化/销毁/打印/检查扩容
void InitSeqList(SeqList* pSeq);
void DestorySeqList(SeqList* pSeq);
void PrintSeqList(SeqList* pSeq);
void CheckExpandCapicity(SeqList* pSeq);
// 头插/头删/尾插/尾删
void PushBack(SeqList* pSeq, DataType x);
void PopBack(SeqList* pSeq);
void PushFront(SeqList* pSeq, DataType x);
void PopFront(SeqList* pSeq);
// 插入/修改/删除/查找
void Insert(SeqList* pSeq, size_t index, DataType x);
void Modified(SeqList* pSeq, size_t index, DataType x);
void Remove(SeqList* pSeq, size_t index);
FindRet Find(SeqList* pSeq, DataType x, size_t index);
Tag Erase(SeqList* pSeq, DataType x, Tag all);
// 冒泡排序/选择排序/二分查找
void Swap(DataType* left, DataType* right);
void BubbleSort(SeqList* pSeq);
void SelectSort(SeqList* pSeq);
//FindRet BinarySearch(DataType* array, size_t begin, size_t end, DataType x);
FindRet BinarySearch(SeqList* pSep, DataType x);
//////////////////////////////////////////////////////////////////////////////
// 实现
void InitSeqList(SeqList* pSeq)
{
assert(pSeq);
pSeq->array = (DataType*)malloc(sizeof(DataType)*DEFAULT_CAPICITY);
pSeq->size = 0;
pSeq->capicity = DEFAULT_CAPICITY;
}
void PrintSeqList(SeqList* pSeq)
{
int i = 0;
for (; i < pSeq->size; ++i)
{
printf("%d ", pSeq->array[i]);
}
printf("\n", pSeq->array[i]);
}
void CheckExpandCapicity(SeqList* pSeq)
{
if (pSeq->size == pSeq->capicity)
{
DataType* tmp = (DataType*)malloc(pSeq->capicity * 2 * sizeof(DataType));
memcpy(tmp, pSeq->array, sizeof(DataType)* pSeq->size);
free(pSeq->array);
pSeq->array = tmp;
pSeq->capicity = pSeq->capicity * 2;
}
}
void DestorySeqList(SeqList* pSeq)
{
if (pSeq)
{
free(pSeq->array);
pSeq->size = 0;
pSeq->capicity = 0;
}
}
void PushBack(SeqList* pSeq, DataType x)
{
assert(pSeq);
CheckExpandCapicity(pSeq);
pSeq->array[pSeq->size++] = x;
}
void PopBack(SeqList* pSeq)
{
assert(pSeq);
if (pSeq->size == 0)
{
printf("SeqList Is Empty\n");
}
--pSeq->size;
}
void PushFront(SeqList* pSeq, DataType x)
{
int i = pSeq->size;
assert(pSeq);
CheckExpandCapicity(pSeq);
for (; i > 0; --i)
{
pSeq->array[i] = pSeq->array[i - 1];
}
pSeq->array[0] = x;
pSeq->size++;
}
void Modified(SeqList* pSeq, size_t index, DataType x)
{
assert(pSeq);
assert(index < pSeq->size);
pSeq->array[index] = x;
}
void Swap(DataType* left, DataType* right)
{
DataType tmp = *left;
*left = *right;
*right = tmp;
}
void BubbleSort(SeqList* pSeq)
{
int count = 0;
int exchange = 0;
size_t index, end;
assert(pSeq);
for (end = pSeq->size - 1; end > 0; --end)
{
//交换标志进行优化
exchange = 0;
for (index = 0; index < end; ++index)
{
count++;
if (pSeq->array[index] > pSeq->array[index + 1])
{
Swap(pSeq->array + index, pSeq->array + index + 1);
exchange = 1;
}
}
if (exchange == 0)
{
break;
}
}
printf("count:%d\n", count);
}
// 选择排序
void SelectSort(SeqList* pSeq)
{
size_t minIndex, index, begin;
assert(pSeq);
for (begin = 0; begin < pSeq->size - 1; ++begin)
{
minIndex = begin;
for (index = begin + 1; index < pSeq->size; ++index)
{
if (pSeq->array[minIndex] > pSeq->array[index])
{
minIndex = index;
}
}
if (minIndex != begin)
{
Swap(pSeq->array + minIndex, pSeq->array + begin);
}
}
}
FindRet BinarySearch(SeqList* pSep, DataType x)
{
size_t left, right, mid;
FindRet ret;
ret.isFind = FALSE;
assert(pSep);
left = 0;
right = pSep->size - 1;
// 注意这里使用<=, 否则可能存在死循环问题
while (left <= right)
{
// 注意越界问题
//mid = (left + right) / 2;
mid = left + (right - left) / 2;
if (pSep->array[mid] == x)
{
ret.isFind = TRUE;
ret.index = mid;
return ret;
}
else if (pSep->array[mid] > x)
{
right = mid - 1;
}
else
{
left = mid + 1;
}
}
return ret;
}
#endif // __SEQ_LIST__
void Test1()
{
SeqList s;
InitSeqList(&s);
PushBack(&s, 1);
PushBack(&s, 2);
PushBack(&s, 3);
PushBack(&s, 4);
PushFront(&s, 0);
PrintSeqList(&s);
DestorySeqList(&s);
}
void Test2()
{
SeqList s;
InitSeqList(&s);
PushBack(&s, 6);
PushBack(&s, 3);
PushBack(&s, 5);
PushBack(&s, 8);
PushBack(&s, 4);
PushBack(&s, 2);
PushBack(&s, 1);
PrintSeqList(&s);
BubbleSort(&s);
PrintSeqList(&s);
BubbleSort(&s);
PrintSeqList(&s);
Swap(s.array + (s.size - 1), s.array);
PrintSeqList(&s);
BubbleSort(&s);
PrintSeqList(&s);
DestorySeqList(&s);
}
void Test3()
{
DataType x;
FindRet ret;
SeqList s;
InitSeqList(&s);
PushBack(&s, 6);
PushBack(&s, 3);
PushBack(&s, 5);
PushBack(&s, 8);
PushBack(&s, 4);
PushBack(&s, 2);
PushBack(&s, 1);
PrintSeqList(&s);
SelectSort(&s);
PrintSeqList(&s);
x = 1;
ret = BinarySearch(&s, x);
if (ret.isFind == TRUE)
{
printf("Binary Search %d Success: %d\n", x, ret.index);
}
x = 8;
ret = BinarySearch(&s, x);
if (ret.isFind == TRUE)
{
printf("Binary Search %d Success: %d\n", x, ret.index);
}
x = 5;
ret = BinarySearch(&s, x);
if (ret.isFind == TRUE)
{
printf("Binary Search %d Success: %d\n", x, ret.index);
}
x = 20;
ret = BinarySearch(&s, x);
if (ret.isFind == FALSE)
{
printf("Binary Search %d Failed\n", x);
}
DestorySeqList(&s);
}
标签：动态顺序表
原文地址：http://10622551.blog.51cto.com/10612551/1697112
