在 STL 中实现 Multiset 的 C++ 程序

2023-06-20 11:22:02 175

多重集是一种关联容器，其中多个元素可以具有相同的值。

功能及说明：

Functions are used here:
   ms.size() = Returns the size of multiset.
   ms.insert) = It is used to insert elements to the multiset.
   ms.erase() = Removes the value from the multiset.
   ms.find() = Returns an iterator to the search element in the multiset if found,
   else returns the iterator to end.
   ms.count() = Returns the number of matches element in the multiset.
   ms.begin() = Returns an iterator to the first element in the multiset.
   ms.end() = Returns an iterator to the last element in the multiset

示例代码

#include
#include 
#include 
#include 
using namespace std;
int main() {
   multiset ms;
   multiset::iterator it, it1;
   int c, i;
   while (1) {
      cout<<"1.Size of the Multiset"<>c;
      switch(c) {
         case 1:
            cout<<"多重集的大小： "<>i;
            if (ms.empty())
               it1 = ms.insert(i);
            else
               it1 = ms.insert(it1, i);
         break;
         case 3:
            cout<<"输入要删除的值： ";
            cin>>i;
            ms.erase(i);
         break;
         case 4:
            cout<<"输入要查找的元素 ";
            cin>>i;
            it = ms.find(i);
            if (it != ms.end())
               cout<<"Element found"<>i;
            cout<输出结果1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 1
多重集的大小： 0
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 2
输入要插入的值： 1
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 2
输入要插入的值： 2
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 2
输入要插入的值： 3
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 2
输入要插入的值： 4
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 6
Multiset的元素： 1 2 3 4
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 3
输入要删除的值： 4
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 4
输入要查找的元素 1
Element found
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 5
输入要计算的元素： 2
2 appears 1 times.
1.Size of the Multiset
2.Insert Element into the Multiset
3.Delete Element from the Multiset
4.Find Element in a Multiset
5.Count Elements with a specific key
6.Display Multiset
7.Exit
输入您的选择： 7
Exit code: 1

在 STL 中实现 Multiset 的 C++ 程序

功能及说明：

示例代码

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