forked from p59qpvlxt/tongxun
parent
79c36080fc
commit
3003106943
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1,135 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup Label="ProjectConfigurations">
|
||||
<ProjectConfiguration Include="Debug|Win32">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|Win32">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|x64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|x64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
</ItemGroup>
|
||||
<PropertyGroup Label="Globals">
|
||||
<VCProjectVersion>17.0</VCProjectVersion>
|
||||
<Keyword>Win32Proj</Keyword>
|
||||
<ProjectGuid>{dde1957c-ab2a-4b80-9928-5904dad85fe3}</ProjectGuid>
|
||||
<RootNamespace>My20231023</RootNamespace>
|
||||
<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>v143</PlatformToolset>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>v143</PlatformToolset>
|
||||
<WholeProgramOptimization>true</WholeProgramOptimization>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>v143</PlatformToolset>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
|
||||
<ConfigurationType>Application</ConfigurationType>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>v143</PlatformToolset>
|
||||
<WholeProgramOptimization>true</WholeProgramOptimization>
|
||||
<CharacterSet>Unicode</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
|
||||
<ImportGroup Label="ExtensionSettings">
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="Shared">
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
|
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
|
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
|
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
||||
</ImportGroup>
|
||||
<PropertyGroup Label="UserMacros" />
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
<SDLCheck>true</SDLCheck>
|
||||
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<GenerateDebugInformation>true</GenerateDebugInformation>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
<FunctionLevelLinking>true</FunctionLevelLinking>
|
||||
<IntrinsicFunctions>true</IntrinsicFunctions>
|
||||
<SDLCheck>true</SDLCheck>
|
||||
<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<EnableCOMDATFolding>true</EnableCOMDATFolding>
|
||||
<OptimizeReferences>true</OptimizeReferences>
|
||||
<GenerateDebugInformation>true</GenerateDebugInformation>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
<SDLCheck>true</SDLCheck>
|
||||
<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<GenerateDebugInformation>true</GenerateDebugInformation>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
<FunctionLevelLinking>true</FunctionLevelLinking>
|
||||
<IntrinsicFunctions>true</IntrinsicFunctions>
|
||||
<SDLCheck>true</SDLCheck>
|
||||
<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<SubSystem>Console</SubSystem>
|
||||
<EnableCOMDATFolding>true</EnableCOMDATFolding>
|
||||
<OptimizeReferences>true</OptimizeReferences>
|
||||
<GenerateDebugInformation>true</GenerateDebugInformation>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="源.cpp" />
|
||||
</ItemGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
|
||||
<ImportGroup Label="ExtensionTargets">
|
||||
</ImportGroup>
|
||||
</Project>
|
||||
@ -0,0 +1,22 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup>
|
||||
<Filter Include="源文件">
|
||||
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
|
||||
<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
|
||||
</Filter>
|
||||
<Filter Include="头文件">
|
||||
<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
|
||||
<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
|
||||
</Filter>
|
||||
<Filter Include="资源文件">
|
||||
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
|
||||
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
|
||||
</Filter>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="源.cpp">
|
||||
<Filter>源文件</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
</Project>
|
||||
@ -0,0 +1,4 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<PropertyGroup />
|
||||
</Project>
|
||||
Binary file not shown.
@ -0,0 +1,11 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project>
|
||||
<ProjectOutputs>
|
||||
<ProjectOutput>
|
||||
<FullPath>D:\vs代码\2023-10-23\x64\Debug\2023-10-23.exe</FullPath>
|
||||
</ProjectOutput>
|
||||
</ProjectOutputs>
|
||||
<ContentFiles />
|
||||
<SatelliteDlls />
|
||||
<NonRecipeFileRefs />
|
||||
</Project>
|
||||
Binary file not shown.
Binary file not shown.
@ -0,0 +1,2 @@
|
||||
PlatformToolSet=v143:VCToolArchitecture=Native64Bit:VCToolsVersion=14.37.32822:TargetPlatformVersion=10.0.22621.0:
|
||||
Debug|x64|D:\vs代码\2023-10-23\|
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1 @@
|
||||
D:\vs代码\2023-10-23\源.cpp;D:\vs代码\2023-10-23\x64\Debug\源.obj
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1 @@
|
||||
D:\vs代码\2023-10-23\x64\Debug\2023-10-23.exe
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1,247 @@
|
||||
#include <iostream>
|
||||
#include <vector>
|
||||
#include <string>
|
||||
#include <queue>
|
||||
#include <unordered_map>
|
||||
#include <cmath>
|
||||
using namespace std;
|
||||
|
||||
|
||||
struct TreeNode {
|
||||
int val;
|
||||
struct TreeNode *left;
|
||||
struct TreeNode *right;
|
||||
TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
|
||||
};
|
||||
|
||||
class IsBalanced_Solution_Node {
|
||||
public:
|
||||
IsBalanced_Solution_Node(int min=INT_MAX,int max=INT_MIN,int high = 0,bool is_balance=true)
|
||||
:_min(min),_max(max),_high(high),_is_balance(is_balance)
|
||||
{}
|
||||
int _min;
|
||||
int _max;
|
||||
int _high;
|
||||
bool _is_balance;
|
||||
};
|
||||
|
||||
IsBalanced_Solution_Node my_IsBalanced_Solution(TreeNode* root) {
|
||||
//对于nullptr我们要不要呢
|
||||
if (root == nullptr) {
|
||||
return IsBalanced_Solution_Node();
|
||||
}
|
||||
IsBalanced_Solution_Node left = my_IsBalanced_Solution(root->left);
|
||||
IsBalanced_Solution_Node right = my_IsBalanced_Solution(root->right);
|
||||
int min = root->val;
|
||||
int max = root->val;
|
||||
int high = 1;
|
||||
bool is_balance = true;
|
||||
if (left._is_balance == false || right._is_balance == false
|
||||
|| std::abs(left._high - right._high) > 1) {
|
||||
is_balance = false;
|
||||
}
|
||||
if (left._high != 0) {
|
||||
min = left._min < min ? left._min : ( min);
|
||||
}
|
||||
if (right._high != 0) {
|
||||
max = right._max > max ? right._max : (max);
|
||||
}
|
||||
high = std::max(left._high, right._high) + 1;
|
||||
return IsBalanced_Solution_Node(min, max, high, is_balance);
|
||||
}
|
||||
// 判断是不是平衡二叉树
|
||||
bool IsBalanced_Solution(TreeNode* pRoot) {
|
||||
// write code here
|
||||
if (pRoot == nullptr) {
|
||||
return true;
|
||||
}
|
||||
return my_IsBalanced_Solution(pRoot)._is_balance;
|
||||
}
|
||||
|
||||
|
||||
class lowestCommonAncestor_Node {
|
||||
public:
|
||||
lowestCommonAncestor_Node(TreeNode*root = nullptr)
|
||||
:node(root){}
|
||||
TreeNode* node;
|
||||
|
||||
};
|
||||
TreeNode* sum_node = nullptr;
|
||||
lowestCommonAncestor_Node my_lowestCommonAncestor(TreeNode* root, int p, int q) {
|
||||
if (root == nullptr) {
|
||||
return lowestCommonAncestor_Node();
|
||||
}
|
||||
lowestCommonAncestor_Node left = my_lowestCommonAncestor(root->left,p,q);
|
||||
lowestCommonAncestor_Node right = my_lowestCommonAncestor(root->right, p, q);
|
||||
//当前的接点有四种可能，
|
||||
//当前的节点是p
|
||||
//当前的节点是q
|
||||
//当前的节点什么都不是，并且是公共的父节点
|
||||
//当前的节点什么也不是
|
||||
TreeNode* re = nullptr;
|
||||
if (left.node == nullptr && right.node == nullptr) {
|
||||
if (root->val == q || root->val == p) {
|
||||
return lowestCommonAncestor_Node(root);
|
||||
}
|
||||
}
|
||||
if (left.node != nullptr && right.node != nullptr) {
|
||||
sum_node = root;
|
||||
return lowestCommonAncestor_Node();
|
||||
}
|
||||
if (left.node != nullptr) {
|
||||
if (root->val == p && left.node->val == q) {
|
||||
sum_node = root;
|
||||
return lowestCommonAncestor_Node();
|
||||
}
|
||||
if (root->val == q && left.node->val == p) {
|
||||
sum_node = root;
|
||||
return lowestCommonAncestor_Node();
|
||||
}
|
||||
re = left.node;
|
||||
}
|
||||
if (right.node != nullptr) {
|
||||
if (root->val == p && right.node->val == q) {
|
||||
sum_node = root;
|
||||
return lowestCommonAncestor_Node();
|
||||
}
|
||||
if (root->val == q && right.node->val == p) {
|
||||
sum_node = root;
|
||||
return lowestCommonAncestor_Node();
|
||||
}
|
||||
re = right.node;
|
||||
}
|
||||
return lowestCommonAncestor_Node(re);
|
||||
}
|
||||
//二叉搜索树的最近公共祖先
|
||||
int aalowestCommonAncestor(TreeNode* root, int p, int q) {
|
||||
// write code here
|
||||
//给定一颗二叉树，和两个节点，返回最近的那个公共的节点
|
||||
//有两种方法可以求出这个答案，一个是直接递归求解出我们所需要的答案，
|
||||
// 另一个就是采用并查集进行求解操作
|
||||
//当我们先采用递归的方式求出公共的节点，再采用并查集的操作解出答案
|
||||
sum_node = nullptr;
|
||||
my_lowestCommonAncestor(root, p, q);
|
||||
return sum_node->val;
|
||||
}
|
||||
|
||||
class Union {
|
||||
public:
|
||||
void put(int father, int child) {
|
||||
if (get_father(father) == -1) {
|
||||
father_map[father] = father;
|
||||
}
|
||||
if (get_father(child) == -1) {
|
||||
father_map[child] = child;
|
||||
}
|
||||
father_map[child] = get_father(father);
|
||||
}
|
||||
int get_father(int child) {
|
||||
if (father_map.count(child) == 0) {
|
||||
return -1;
|
||||
}
|
||||
queue<int>qu;
|
||||
int father = child;
|
||||
qu.push(father);
|
||||
while (father != father_map[father]) {
|
||||
father = father_map[father];
|
||||
qu.push(father);
|
||||
}
|
||||
while (!qu.empty()) {
|
||||
father_map[qu.front()] = father;
|
||||
qu.pop();
|
||||
}
|
||||
return father;
|
||||
}
|
||||
unordered_map<int, int>father_map;
|
||||
|
||||
};
|
||||
|
||||
int re = -1;
|
||||
Union un;
|
||||
void my_union_lowestCommonAncestor(TreeNode* root, int p, int q) {
|
||||
if (re != -1) {
|
||||
return;
|
||||
}
|
||||
if (root != nullptr) {
|
||||
//每次只有在递归完左树之后，就进行右树的操作，
|
||||
//右树递归完之后就将左右树和当前节点合并
|
||||
my_union_lowestCommonAncestor(root->left, q, p);
|
||||
if (root->left != nullptr) {
|
||||
un.put(root->val, root->left->val);
|
||||
}
|
||||
if (root->val == q && un.get_father(p) != -1) {
|
||||
re = un.get_father(p);
|
||||
}
|
||||
if(root->val == p && un.get_father(q) != -1) {
|
||||
re = un.get_father(q);
|
||||
}
|
||||
|
||||
|
||||
my_union_lowestCommonAncestor(root->right, q, p);
|
||||
if (root->right != nullptr) {
|
||||
un.put(root->val, root->right->val);
|
||||
}
|
||||
if (root->val == q && un.get_father(p) != -1) {
|
||||
re = un.get_father(p);
|
||||
}
|
||||
if(root->val == p && un.get_father(q) != -1) {
|
||||
re = un.get_father(q);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
//采用并查集的方式进行操作
|
||||
//二叉搜索树的最近公共祖先
|
||||
int lowestCommonAncestor(TreeNode* root, int o1, int o2) {
|
||||
// write code here
|
||||
my_union_lowestCommonAncestor(root, o1, o2);
|
||||
return re;
|
||||
}
|
||||
|
||||
void my_Serialize(TreeNode* root, string& str) {
|
||||
if (root == nullptr) {
|
||||
str.append("#");
|
||||
}
|
||||
else {
|
||||
str.append('{'+ to_string(root->val) + '}');
|
||||
my_Serialize(root->left, str);
|
||||
my_Serialize(root->right, str);
|
||||
}
|
||||
}
|
||||
//序列化二叉树
|
||||
char* Serialize(TreeNode* root) {
|
||||
string str;
|
||||
my_Serialize(root, str);
|
||||
|
||||
return const_cast<char*>(str.c_str());
|
||||
}
|
||||
|
||||
TreeNode* my_Deserialize( string& str, int& index) {
|
||||
if (str[index] == '#') {
|
||||
index++;
|
||||
return nullptr;
|
||||
}
|
||||
index = str.find('{', index);
|
||||
index = index + 1;
|
||||
int next_index = str.find('}', index);
|
||||
|
||||
TreeNode* cur = new TreeNode(atoi(str.substr(index, next_index).c_str()));
|
||||
index = next_index + 1;
|
||||
cur->left = my_Deserialize(str, index);
|
||||
cur->right = my_Deserialize(str, index);
|
||||
}
|
||||
|
||||
//反序列化二叉树
|
||||
TreeNode* Deserialize(char* str) {
|
||||
int index = 0;
|
||||
string ss(str);
|
||||
return my_Deserialize( ss,index);
|
||||
}
|
||||
|
||||
int main() {
|
||||
TreeNode* root = new TreeNode(1);
|
||||
root->left = new TreeNode(2);
|
||||
root->right = new TreeNode(3);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in new issue