博客 https://blog.lenyiin.com/set-map/ 的代码仓库
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BIN
Windows_Set_Map/.vs/Windows_Set_Map/v17/Solution.VC.db
Normal file
BIN
Windows_Set_Map/.vs/Windows_Set_Map/v17/Solution.VC.db
Normal file
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@ -354,6 +354,33 @@ void test_Map2()
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cout << "IsRBTree? " << (countMap.IsRBTree() ? "true" : "false") << endl;
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}
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void test_Map3()
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{
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Lenyiin::Map<int, std::string> map;
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// 插入键值对
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map.Insert(std::make_pair(1, "one"));
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map.Insert(std::make_pair(2, "two"));
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map.Insert(std::make_pair(3, "three"));
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// 通过 operator[] 访问或插入
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map[4] = "four";
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std::cout << "Key 4: " << map[4] << std::endl;
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// 查找元素
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auto it = map.Find(2);
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if (it != map.end())
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{
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std::cout << "Found: " << it->first << " -> " << it->second << std::endl;
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}
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// 删除元素
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map.Erase(1);
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// 验证红黑树
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cout << "IsRBTree? " << (map.IsRBTree() ? "true" : "false") << endl;
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}
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int main()
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{
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// test_set();
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@ -365,6 +392,7 @@ int main()
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test_Set();
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test_Map1();
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test_Map2();
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test_Map3();
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return 0;
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}
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@ -4,31 +4,37 @@
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namespace Lenyiin
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{
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// Map 容器的实现，依赖于红黑树
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template <class K, class V>
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class Map
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{
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// 用于从节点中获取键值的仿函数
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struct MapKeyOfT
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{
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const K& operator()(const std::pair<K, V>& kv)
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{
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return kv.first;
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return kv.first; // 返回键作为红黑树的比较依据
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}
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};
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public:
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// 定义迭代器类型，支持遍历和访问集合中的元素
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typedef typename RBTree<K, std::pair<K, V>, MapKeyOfT>::iterator iterator;
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typedef typename RBTree<K, std::pair<K, V>, MapKeyOfT>::const_iterator const_iterator;
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// 返回指向第一个元素的迭代器
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iterator begin()
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{
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return _tree.begin();
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}
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// 返回指向尾后位置的迭代器
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iterator end()
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{
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return _tree.end();
|
||||
}
|
||||
|
||||
// const 版本的迭代器
|
||||
const_iterator begin() const
|
||||
{
|
||||
return _tree.begin();
|
||||
@ -39,22 +45,32 @@ namespace Lenyiin
|
||||
return _tree.end();
|
||||
}
|
||||
|
||||
// 插入元素，返回插入结果
|
||||
std::pair<iterator, bool> Insert(const std::pair<K, V>& kv)
|
||||
{
|
||||
return _tree.Insert(kv);
|
||||
}
|
||||
|
||||
// 删除元素，返回是否删除成功
|
||||
bool Erase(const K& key)
|
||||
{
|
||||
return _tree.Erase(key);
|
||||
}
|
||||
|
||||
// 查找元素，返回指向该元素的迭代器
|
||||
iterator Find(const K& key)
|
||||
{
|
||||
return _tree.Find(key);
|
||||
}
|
||||
|
||||
// [] 下标运算符
|
||||
V& operator[](const K& key)
|
||||
{
|
||||
std::pair<iterator, bool> ret = _tree.Insert(std::make_pair(key, V()));
|
||||
return ret.first->second;
|
||||
}
|
||||
|
||||
// 校验红黑树的合法性
|
||||
bool IsRBTree()
|
||||
{
|
||||
return _tree.IsRBTree();
|
||||
|
||||
@ -646,7 +646,7 @@ namespace Lenyiin
|
||||
}
|
||||
|
||||
// 查找节点
|
||||
iterator& Find(const K& key)
|
||||
iterator Find(const K& key)
|
||||
{
|
||||
KOfT koft;
|
||||
Node* cur = _root;
|
||||
|
||||
@ -4,9 +4,11 @@
|
||||
|
||||
namespace Lenyiin
|
||||
{
|
||||
// Set 容器的实现，依赖于红黑树
|
||||
template <class K>
|
||||
class Set
|
||||
{
|
||||
// 用于从节点中获取键值的仿函数
|
||||
struct SetKeyOfT
|
||||
{
|
||||
const K& operator()(const K& k)
|
||||
@ -16,20 +18,24 @@ namespace Lenyiin
|
||||
};
|
||||
|
||||
public:
|
||||
// 定义迭代器类型，支持遍历和访问集合中的元素
|
||||
// 这里RBTree<K, K, SetKeyOfT>::iterator还没有实例化, 系统找不到, typename告诉编译器现在先不着急找
|
||||
typedef typename RBTree<K, K, SetKeyOfT>::iterator iterator;
|
||||
typedef typename RBTree<K, K, SetKeyOfT>::const_iterator const_iterator;
|
||||
|
||||
// 返回指向第一个元素的迭代器
|
||||
iterator begin()
|
||||
{
|
||||
return _tree.begin();
|
||||
}
|
||||
|
||||
// 返回指向尾后位置的迭代器
|
||||
iterator end()
|
||||
{
|
||||
return _tree.end();
|
||||
}
|
||||
|
||||
// const 版本的迭代器
|
||||
const_iterator begin() const
|
||||
{
|
||||
return _tree.begin();
|
||||
@ -40,27 +46,32 @@ namespace Lenyiin
|
||||
return _tree.end();
|
||||
}
|
||||
|
||||
// 插入元素，返回插入结果
|
||||
std::pair<iterator, bool> Insert(const K& key)
|
||||
{
|
||||
return _tree.Insert(key);
|
||||
}
|
||||
|
||||
// 删除元素，返回是否删除成功
|
||||
bool Erase(const K& key)
|
||||
{
|
||||
return _tree.Erase(key);
|
||||
}
|
||||
|
||||
iterator& Find(const K& key)
|
||||
// 查找元素，返回指向该元素的迭代器
|
||||
iterator Find(const K& key)
|
||||
{
|
||||
return _tree.Find(key);
|
||||
}
|
||||
|
||||
// 校验红黑树的合法性
|
||||
bool IsRBTree()
|
||||
{
|
||||
return _tree.IsRBTree();
|
||||
}
|
||||
|
||||
private:
|
||||
// 底层红黑树实例
|
||||
RBTree<K, K, SetKeyOfT> _tree;
|
||||
};
|
||||
}
|
||||
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Loading…
Reference in New Issue
Block a user