SeqList.h
#ifndef SEQLIST_H
#define SEQLIST_H
#include<iostream>
using namespace std;
typedef enum{TRUE,FALSE}Status;
template<class Type>
class SeqList
{
private:
enum{DefaultSize = 10}; //顺序表的默认长度
Type *base; //存放元素数组的首地址
int capacity; //顺序表的容量
int size; //顺序表实际存放元素的个数
private://为内部函数所调用，不希望在类外訪问
bool IsFull()
{
if (size == capacity)
return true;
else
return false;
}
bool IsEmpty()
{
if (size == 0)
return true;
else
return false;
}
Status destory()
{
if (base == NULL)
return FALSE;
delete[] base;
base = NULL;
capacity = size = 0;
return TRUE;
}
public:
SeqList(int sz = DefaultSize)
{
capacity = sz > capacity ? sz : capacity;
base = new Type[capacity];
size = 0;
}
~SeqList()
{
destory();
}
Status push_back(const Type &x)
{
if (IsFull())
{
cout << "空间已满" << x << "不能插入" << endl;
return FALSE;
}
base[size++] = x;
return TRUE;
}
Status push_front(const Type &x)
{
if (IsFull())
{
cout << "空间已满" << x << "不能插入" << endl;
return FALSE;
}
for (int i = size - 1; i >= 0; --i) //------------------>从最后一个元素到第一个元素依次往后移动一个位置
base[i+ 1] = base[i];
base[0] = x;
size++;
return FALSE;
}
void show_list()
{
for (int i = 0; i < size; ++i)
cout << base[i] << " ";
cout << endl;
}
Status pop_back(Type &x)//将删除的元素存放在x中，以备不时之需
{
if (IsEmpty())
{
cout << "空间已空，不能删除" << endl;
return FALSE;
}
x = base[--size];
return TRUE;
}
Status pop_front(Type &x)
{
if (IsEmpty())
{
cout << "空间已空。不能删除" << endl;
return FALSE;
}
x = base[0];//将删除的元素保存在x中，以备不时之需
for (int i = 1; i <= size - 1; ++i) //--------------->从第二个元素到最后一个元素，依次覆盖前一个元素
base[i - 1] = base[i];
size--;
return TRUE;
}
Status insert_pos(int pos,const Type &x)
{
if (pos < 0 || pos >= size)
{
cout << "插入位置无效" << endl;
return FALSE;
}
if (IsFull())
{
cout << "空间已满" << x << "不能插入" << endl;
return FALSE;
}
for (int i = size - 1; i >= pos; --i)//--------------->从最后一个元素到所插入的位置的元素依次往后移动一个位置，为所要插入的元素留出位置
base[i + 1] = base[i];
base[pos] = x;
size++;
return TRUE;
}
Status delete_pos(int pos,Type &x)
{
if (pos < 0 || pos >= size)
{
cout << "删除位置无效" << endl;
return FALSE;
}
if (IsEmpty())
{
cout << "空间已空，不能删除" << endl;
return FALSE;
}
x = base[pos];
for (int i = pos + 1; i < size; ++i)//从删除位置后面的第一个元素開始依次覆盖前一个元素
base[i - 1] = base[i];
size--;
return TRUE;
}
int find(const Type &x)
{
for (int i = 0; i < size; ++i)
{
if (base[i] == x)
return i;
}
return -1;
}
void sort()//冒泡排序
{
for (int i = 0; i < size - 1; ++i)//排序size-1次
{
for (int j = 0; j < size - 1 - i; ++j)
{
if (base[j] > base[j + 1])
{
Type tmp = base[j];
base[j] = base[j + 1];
base[j + 1] = tmp;
}
}
}
}
void reserve()//左右对称位置交换
{
int left = 0;
int right = size - 1;
while (left < right)
{
Type tmp = base[left];
base[left] = base[right];
base[right] = tmp;
left++;
right--;
}
}
Status insert_val(const Type &x)
{
if (IsFull())
{
cout << "空间已满" << x << "不能按值插入" << endl;
return FALSE;
}
sort();
for (int i = 0; i < size; ++i)
{
if (base[i] > x)//存在比所要插入元素大的元素，在该位置插入它
{
insert_pos(i, x);
return TRUE;
}
}
base[size++] = x;//不存在比所要插入元素大的元素，在最后位置插入它
return TRUE;
}
/*
Status insert_val(const Type &x)//用while取代for
{
if (IsFull())
{
cout << "空间已满" << x << "不能按值插入" << endl;
return FALSE;
}
sort();
int i = 0;
while(i<size && x > base[i])
{
i++;
}
insert_pos(i,x);
return TRUE;
}
*/
Status delete_val(const Type &x)
{
int n = find(x);
if (n == -1)
{
cout <<x<< "不存在，无法删除" << endl;
return FALSE;
}
Type item;
delete_pos(n, item);
return TRUE;
}
void clear()
{
size = 0;
}
};
#endifmain.cpp
#include"SeqList.h"
int main()
{
SeqList<int> mylist;
int item;
int n;
int select = 1;
while (select)
{
cout << "*************************************** *" << endl;
cout << "*[1] push_back [2] push_front *" << endl;
cout << "*[3] show_list [4] pop_back *" << endl;
cout << "*[5] pop_front [6] insert_val *" << endl;
cout << "*[7] insert_pos [8] find *" << endl;
cout << "*[9] delete_pos [10] delete_val*" << endl;
cout << "*[11] sort [12] reserve *" << endl;
cout << "*[13] destory [14] clear *" << endl;
cout << "*[0] quit_system [0] quit_system*" << endl;
cout << "请选择：>";
cin >> select;
switch (select)
{
case 1:
cout << "请输入要插入的元素（-1结束):>";
while (cin >> item, item != -1)
{
mylist.push_back(item);
}
break;
case 2:
cout << "请输入要插入的元素（-1结束）:>";
while (cin >> item, item != -1)
{
mylist.push_front(item);
}
break;
case 3:
mylist.show_list();
break;
case 4:
mylist.pop_back(item);
break;
case 5:
mylist.pop_front(item);
break;
case 6:
cout << "请输入要插入的元素：";
cin >> item;
mylist.insert_val(item);
break;
case 7:
cout << "请输入要插入的位置：";
cin >> n;
cout << "请输入要插入的元素：";
cin >> item;
mylist.insert_pos(n,item);
break;
case 8:
cout << "请输入要查找的元素：";
cin >> item;
cout << mylist.find(item) << endl;
break;
case 9:
cout << "请输入要删除的位置：";
cin >> n;
mylist.delete_pos(n,item);
break;
case 10:
cout << "请输入要删除的元素：";
cin >> item;
mylist.delete_val(item);
break;
case 11:
mylist.sort();
break;
case 12:
mylist.reserve();
break;
case 14:
mylist.clear();
break;
default:
break;
}
}
system("pause");
return 0;
}
