顺序表

1 #include<iostream>
  2 using namespace std;
  3 const int MaxSize = 100;
  4 class SeqList
  5 {
  6 public:
  7   SeqList();
  8   SeqList(int a[], int n);
  9   ~SeqList();
 10   int Length();
 11   int Get(int i);      //按位查找
 12   int Locate(int x);  //按值查找
 13   void Insert(int i, int x);
 14   int Delete(int i);
 15   void PrintList();    //遍历操作
 16 private:
 17   int data[MaxSize];
 18   int length;
 19 };
 20 SeqList::~SeqList()
 21 {
 22 }
 23 SeqList::SeqList()
 24 {
 25   length = 0;
 26 }
 27 int SeqList::Length()
 28 {
 29   return length;
 30 }
 31 SeqList::SeqList(int a[], int n)
 32 {
 33   if (n > MaxSize)
 34     cout<<"参数非法";
 35   for (int i = 0; i < n; ++i)
 36   {
 37     data[i] = a[i];
 38   }
 39   length = n;
 40 }
 41 void SeqList::PrintList()
 42 {
 43   for (int i = 0; i < length; ++i)
 44   {
 45     cout << data[i]<<"\t";
 46   }
 47 }
 48 int SeqList::Locate(int x)
 49 {
 50   for (int i=0;i<length;++i)
 51   {
 52     if (data[i] == x)
 53       return i + 1;
 54   }
 55   return 0;
 56 }
 57 int SeqList::Get(int i)
 58 {
 59   if (i<1 && i>length)
 60   {
 61     cout<<"查找位置非法";
 62   }
 63   else
 64     return data[i - 1];
 65 }
 66 int SeqList::Delete(int i)
 67 {
 68   if (length == 0)
 69   {
 70     throw"下溢";
 71   }
 72   if (i<1||i>length)
 73   {
 74     cout<<"位置";
 75   }
 76   int x = data[i - 1];
 77   for (int j = i; j < length; j++)
 78   {
 79     data[j - 1] = data[j];
 80   }
 81   length--;
 82   return x;
 83 }
 84 void SeqList::Insert(int i, int x)
 85 {
 86   if (length >= MaxSize)
 87   {
 88     cout<<"上溢";
 89   }
 90   if (i<1||i>length+1)
 91   {
 92     cout<<"位置异常";
 93   }
 94   for (int j=length;j>=i;j--)
 95   {
 96     data[j] = data[j-1];
 97   }
 98   data[i - 1] = x;
 99   length++;
100 }
101 int main()
102 {
103   int r[5] = { 1,5,6,8,4 }, i, x;
104   SeqList L(r, 5);
105   cout << "当前线性表的数据为:"<<endl;
106   L.PrintList();
107   cout << endl;
108   cout << "当前线性表表的长度为：" << endl;
109   cout << L.Length() << endl;
110   cout << "请输入要查找元素的位置:" << endl;
111   cin >> i;
112   x = L.Get(i);
113   cout << "第" << i << "位置的元素为" << x << endl;
114   cout << "请输入在第几个位置插入几:" << endl;
115   cin >> i >> x;
116   L.Insert(i, x);
117   cout << "执行插入操作后数据为：" << endl;
118   L.PrintList();
119   cout << endl;
120   cout << "请输入查找的元素值："<<endl;
121   cin >> x;
122   i = L.Locate(x);
123   if (0 == i) cout << "查找失败" << endl;
124   else cout << "元素" << x << "的位置为：" << i << endl;
125   cout << "请输入要删除第几个元素："<<endl;
126   cin >> i;
127   x = L.Delete(i);                             
128   cout << "删除的元素是" << x << "，删除后数据为："<<endl;
129   L.PrintList();                           
130 }      

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