oral_quiz->#是否子树#
#include <stdio.h>
#include "Utilities/BinaryTree.h"
//-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//错误茫茫多，太渣，简直不能看
//void Find_Help(BinaryTreeNode* root, BinaryTreeNode* subRoot, BinaryTreeNode** rootPos);
//BinaryTreeNode* Find(BinaryTreeNode* root, BinaryTreeNode* subRoot);
//bool Judge(BinaryTreeNode* root, BinaryTreeNode* subRoot);
//
//bool MyIfIsSubTree(BinaryTreeNode* root, BinaryTreeNode* subRoot) {
// BinaryTreeNode* rootPos = Find(root, subRoot);
// return Judge(rootPos, subRoot);
//}
//
//bool Judge(BinaryTreeNode* root, BinaryTreeNode* subRoot) {
// if(root == NULL || subRoot == NULL) {
// if(root == NULL && subRoot == NULL)
// return true;
// return false;
// }
// if(root->m_nValue == subRoot->m_nValue) {
// if(Judge(root->m_pLeft, subRoot->m_pLeft)) {
// if(Judge(root->m_pRight, subRoot->m_pRight)) {
// return true;
// }
// }
// }
// return false;
//}
//
//BinaryTreeNode* Find(BinaryTreeNode* root, BinaryTreeNode* subRoot) {
// BinaryTreeNode* rootPos = root;
// Find_Help(root, subRoot, &rootPos);
//
// return rootPos;
//}
//
//void Find_Help(BinaryTreeNode* root, BinaryTreeNode* subRoot, BinaryTreeNode** rootPos) {
// if(root->m_nValue == subRoot->m_nValue) {
// *rootPos = root;
// return;
// }
//
// Find_Help(root->m_pLeft, subRoot, rootPos);
// Find_Help(root->m_pRight, subRoot, rootPos);
//}
//-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//=============================hht's==================================
bool DoesTree1HaveTree2(BinaryTreeNode* pRoot1, BinaryTreeNode* pRoot2);
bool HasSubtree(BinaryTreeNode* pRoot1, BinaryTreeNode* pRoot2) {
bool result = false;
if(pRoot1 != NULL && pRoot2 != NULL) {
if(pRoot1->m_nValue == pRoot2->m_nValue)
result = DoesTree1HaveTree2(pRoot1, pRoot2);
if(!result)
result = HasSubtree(pRoot1->m_pLeft, pRoot2);
if(!result)
result = HasSubtree(pRoot1->m_pRight, pRoot2);
}
return result;
}
bool DoesTree1HaveTree2(BinaryTreeNode* pRoot1, BinaryTreeNode* pRoot2) {
if(pRoot2 == NULL)
return true;
if(pRoot1 == NULL)
return false;
if(pRoot1->m_nValue != pRoot2->m_nValue)
return false;
return DoesTree1HaveTree2(pRoot1->m_pLeft, pRoot2->m_pLeft) &&
DoesTree1HaveTree2(pRoot1->m_pRight, pRoot2->m_pRight);
}
void Test(char* testName, BinaryTreeNode* pRoot1, BinaryTreeNode* pRoot2, bool expected)
{
if(HasSubtree(pRoot1, pRoot2) == expected)
printf("%s passed.\n", testName);
else
printf("%s failed.\n", testName);
}
// 树中结点含有分叉，树B是树A的子结构
// 8 8
// / \ / \
// 8 7 9 2
// / \
// 9 2
// / \
// 4 7
void Test1()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(7);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA5 = CreateBinaryTreeNode(2);
BinaryTreeNode* pNodeA6 = CreateBinaryTreeNode(4);
BinaryTreeNode* pNodeA7 = CreateBinaryTreeNode(7);
ConnectTreeNodes(pNodeA1, pNodeA2, pNodeA3);
ConnectTreeNodes(pNodeA2, pNodeA4, pNodeA5);
ConnectTreeNodes(pNodeA5, pNodeA6, pNodeA7);
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeB1, pNodeB2, pNodeB3);
Test("Test1", pNodeA1, pNodeB1, true);
DestroyTree(pNodeA1);
DestroyTree(pNodeB1);
}
// 树中结点含有分叉，树B不是树A的子结构
// 8 8
// / \ / \
// 8 7 9 2
// / \
// 9 3
// / \
// 4 7
void Test2()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(7);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA5 = CreateBinaryTreeNode(3);
BinaryTreeNode* pNodeA6 = CreateBinaryTreeNode(4);
BinaryTreeNode* pNodeA7 = CreateBinaryTreeNode(7);
ConnectTreeNodes(pNodeA1, pNodeA2, pNodeA3);
ConnectTreeNodes(pNodeA2, pNodeA4, pNodeA5);
ConnectTreeNodes(pNodeA5, pNodeA6, pNodeA7);
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeB1, pNodeB2, pNodeB3);
Test("Test2", pNodeA1, pNodeB1, false);
DestroyTree(pNodeA1);
DestroyTree(pNodeB1);
}
// 树中结点只有左子结点，树B是树A的子结构
// 8 8
// / /
// 8 9
// / /
// 9 2
// /
// 2
// /
// 5
void Test3()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(2);
BinaryTreeNode* pNodeA5 = CreateBinaryTreeNode(5);
ConnectTreeNodes(pNodeA1, pNodeA2, NULL);
ConnectTreeNodes(pNodeA2, pNodeA3, NULL);
ConnectTreeNodes(pNodeA3, pNodeA4, NULL);
ConnectTreeNodes(pNodeA4, pNodeA5, NULL);
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeB1, pNodeB2, NULL);
ConnectTreeNodes(pNodeB2, pNodeB3, NULL);
Test("Test3", pNodeA1, pNodeB1, true);
DestroyTree(pNodeA1);
DestroyTree(pNodeB1);
}
// 树中结点只有左子结点，树B不是树A的子结构
// 8 8
// / /
// 8 9
// / /
// 9 3
// /
// 2
// /
// 5
void Test4()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(2);
BinaryTreeNode* pNodeA5 = CreateBinaryTreeNode(5);
ConnectTreeNodes(pNodeA1, pNodeA2, NULL);
ConnectTreeNodes(pNodeA2, pNodeA3, NULL);
ConnectTreeNodes(pNodeA3, pNodeA4, NULL);
ConnectTreeNodes(pNodeA4, pNodeA5, NULL);
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(3);
ConnectTreeNodes(pNodeB1, pNodeB2, NULL);
ConnectTreeNodes(pNodeB2, pNodeB3, NULL);
Test("Test4", pNodeA1, pNodeB1, false);
DestroyTree(pNodeA1);
DestroyTree(pNodeB1);
}
// 树中结点只有右子结点，树B是树A的子结构
// 8 8
// \ \
// 8 9
// \ \
// 9 2
// \
// 2
// \
// 5
void Test5()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(2);
BinaryTreeNode* pNodeA5 = CreateBinaryTreeNode(5);
ConnectTreeNodes(pNodeA1, NULL, pNodeA2);
ConnectTreeNodes(pNodeA2, NULL, pNodeA3);
ConnectTreeNodes(pNodeA3, NULL, pNodeA4);
ConnectTreeNodes(pNodeA4, NULL, pNodeA5);
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeB1, NULL, pNodeB2);
ConnectTreeNodes(pNodeB2, NULL, pNodeB3);
Test("Test5", pNodeA1, pNodeB1, true);
DestroyTree(pNodeA1);
DestroyTree(pNodeB1);
}
// 树A中结点只有右子结点，树B不是树A的子结构
// 8 8
// \ \
// 8 9
// \ / \
// 9 3 2
// \
// 2
// \
// 5
void Test6()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(2);
BinaryTreeNode* pNodeA5 = CreateBinaryTreeNode(5);
ConnectTreeNodes(pNodeA1, NULL, pNodeA2);
ConnectTreeNodes(pNodeA2, NULL, pNodeA3);
ConnectTreeNodes(pNodeA3, NULL, pNodeA4);
ConnectTreeNodes(pNodeA4, NULL, pNodeA5);
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(3);
BinaryTreeNode* pNodeB4 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeB1, NULL, pNodeB2);
ConnectTreeNodes(pNodeB2, pNodeB3, pNodeB4);
Test("Test6", pNodeA1, pNodeB1, false);
DestroyTree(pNodeA1);
DestroyTree(pNodeB1);
}
// 树A为空树
void Test7()
{
BinaryTreeNode* pNodeB1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeB2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeB3 = CreateBinaryTreeNode(3);
BinaryTreeNode* pNodeB4 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeB1, NULL, pNodeB2);
ConnectTreeNodes(pNodeB2, pNodeB3, pNodeB4);
Test("Test7", NULL, pNodeB1, false);
DestroyTree(pNodeB1);
}
// 树B为空树
void Test8()
{
BinaryTreeNode* pNodeA1 = CreateBinaryTreeNode(8);
BinaryTreeNode* pNodeA2 = CreateBinaryTreeNode(9);
BinaryTreeNode* pNodeA3 = CreateBinaryTreeNode(3);
BinaryTreeNode* pNodeA4 = CreateBinaryTreeNode(2);
ConnectTreeNodes(pNodeA1, NULL, pNodeA2);
ConnectTreeNodes(pNodeA2, pNodeA3, pNodeA4);
Test("Test8", pNodeA1, NULL, false);
DestroyTree(pNodeA1);
}
// 树A和树B都为空
void Test9()
{
Test("Test9", NULL, NULL, false);
}
int main(int argc, char* argv[])
{
Test1();
Test2();
Test3();
Test4();
Test5();
Test6();
Test7();
Test8();
Test9();
return 0;
}