idk why these stuffs get stashed for so long and I didn't ever commit them

This commit is contained in:
2025-11-06 09:43:54 +08:00
parent 5dbdfef1a1
commit e01c041259
232 changed files with 22806 additions and 1256 deletions

View File

@@ -1,33 +1,30 @@
/***链栈实现括号匹配***/
#include<string>
#include<iostream>
using namespace std;
#include"LinkStack.h"
//算法3.11 括号的匹配
bool match(string exp)
//括号的匹配
bool Matching()
{
//检验表达式(表达式以"#"结束)中所含"["和"]"、"("和")"是否匹配如果匹配则返回true否则返回false。
//检验表达式中所含括号是否正确匹配如果匹配则返回true否则返回false。
//表达式以“#”结束
SNode<char> *S;
InitStack(S);
int flag=1; // 标记查找结果以控制循环及返回结果
char ch;
char e,x;
int i=0;
ch=exp[i++]; // 读入第一个字符
while(ch!='#' && flag)
char c;
char x;
cin>>c; // 读入第一个字符
while(c!='#' && flag)
{
switch (ch)
{
case '[':
case '(': // 若是左括号,则将其压入栈
switch (c){
case '[':
case '(': // 若是左括号,则将其压入栈
cout<<"左括号进栈!"<<endl;
Push(S,ch);
Push(S,c);
break;
case ')' : // 若是右括号“)”,则根据栈顶元素的值分情况考虑
GetTop(S,e);
if (!StackEmpty(S) && e=='(' ) // 若栈非空且栈顶元素是“(”,则匹配成功
case ')' : // 若是右括号“)”,则根据当前栈顶元素的值分情况考虑
GetTop(S,x);
if (!StackEmpty(S) && x=='(' ) // 若栈非空且栈顶元素是“(”,则匹配成功
{
Pop(S,x);
cout<<"右括号出栈!"<<endl;
@@ -35,35 +32,31 @@ bool match(string exp)
else
flag=0; // 若栈空或栈顶元素不是“(”,则非法
break;
case ']' : // 若是右括号“]”,则根据栈顶元素的值分情况考虑
GetTop(S,e);
if (!StackEmpty(S) && e=='[' ) // 若栈顶元素是“[”,则匹配成功
case ']' : // 若是右括号“]”,则根据当前栈顶元素的值分情况考虑
GetTop(S,x);
if (!StackEmpty(S) && x=='[' ) // 若栈顶元素是“[”,则匹配成功
Pop(S,x);
else
flag=0; // 若栈空或栈顶元素不是“[”,则非法
break;
}//switch
ch=exp[i++]; //继续读入下一个字符
cin>>c; //继续读入下一个字符
}//while
if (StackEmpty(S) && flag ) // 栈空且标志为true,括号匹配返回true
DestroyStack(S);
if (StackEmpty(S) && flag )
return true;
else // 否则,括号不匹配,返回false
else
return false;
}//match
}//Matching
int main()
{
int flag;
string exp;
cout<<"请输入待匹配的表达式,以“#”结束:"<<endl;
cin>>exp;
flag = match(exp);
flag = Matching();
if(flag)
cout<<"括号匹配成功!"<<endl;
else
cout<<"括号匹配失败!"<<endl;
return 0;
}//end of main function
}

View File

@@ -1,158 +0,0 @@
#include<iostream>
#include<string>
using namespace std;
struct dancer // 舞者信息
{ string name; // 姓名
char sex; // 性别
};
struct Node // 队列结点
{ dancer data; // 数据域
Node* next; // 指针域,指向后继
}*front,*rear; // 队头、队尾
struct LinkQueue
{ Node *front;
Node *rear;
}; // 男队和女队
void InitialLinkQueue(LinkQueue &Q) // 初始化队列
{
Q.front=new Node;
Q.front->next=NULL;
Q.rear=Q.front;
}
void DestroyLinkQueue(LinkQueue &Q) // 销毁队列
{ Node *p;
while(Q.front!=NULL)
{ p=Q.front;
Q.front=Q.front->next;
delete p;
}
}
void EnQueue(LinkQueue &Q,dancer &e) // 入队
{
Node *s=new Node;
s->data=e;
s->next=Q.rear->next;
Q.rear->next=s;
Q.rear=s;
}
bool IsEmpty(LinkQueue Q) // 判队空
{
if (Q.front==Q.rear)
return true;
else
return false;
}
bool DeQueue(LinkQueue &Q,dancer &e) // 出队
{
Node *p;
if (IsEmpty(Q)) // 队空,
{
cout<<"队列为空,无法出队列!";
return false;
}
p=Q.front->next;
e=p->data;
Q.front->next=p->next;
if (p==Q.rear) // 只有一个元素,出队
Q.rear=Q.front; // 修改队尾指针
delete p;
return true;
}
bool GetHead(LinkQueue Q,dancer &e)
{ if(IsEmpty(Q)) // 队空
{
cout<< "队列为空,无法取得队首元素!";
return false;
}
e=Q.front->next->data; // 返回队头元素
return true;
}
void QueueTranverse(LinkQueue Q) // 遍历队
{ Node *p;
p=Q.front->next;
while(p!=NULL)
{ cout<<(p->data).name<<" ";
p=p->next;
}
cout<<endl;
}
void EntranHall(dancer person[],int num) // 舞者入场
{
int i;
for(i=0;i<num;i++)
{
cout<<"请输入第"<<i+1<<"个舞者性别(F(女) or M(男))及姓名:"<<endl;
cin>>person[i].sex;
cin>>person[i].name;
}
cout<<"现有舞者:"<<endl;
for(i=0;i<num;i++)
{
cout<<i+1<<":"<<person[i].sex
<<","<<person[i].name<<endl;
}
}
//算法3.24
void DancePartner(dancer person[],int num)
{
dancer newdancer,m,f,p;
LinkQueue GenQueue;
LinkQueue LadyQueue;
InitialLinkQueue(GenQueue); // 初始化男队
InitialLinkQueue(LadyQueue); // 初始化女队
for(int i=0;i<num;i++) // 舞者入场
{ p=person[i];
if(p.sex=='F')
EnQueue(LadyQueue,p);
else
EnQueue(GenQueue,p);
}
while ( (!IsEmpty(GenQueue)) && (!IsEmpty(LadyQueue)) ) // 匹配舞者
{
DeQueue(GenQueue,m); // 女士出队
DeQueue(LadyQueue,f); // 男士出队
cout<<m.name <<"<---配对--->"<<f.name<<endl; // 男、女配队
}
if (!IsEmpty(GenQueue))
{
GetHead(GenQueue,m);
cout<<m.name<<"先生还在等着呢!"<<endl;
}
else if (!IsEmpty(LadyQueue))
{
GetHead(LadyQueue,f);
cout<<f.name<<"女士还在等着呢!"<<endl;
}
else
cout<<"配对完美结束!"<<endl;
DestroyLinkQueue(GenQueue); // 销毁队列
DestroyLinkQueue(LadyQueue);
}
int main()
{
dancer *person;
int num;
cout<<"请输入舞伴总数量:"<<endl;
cin>>num;
person=new dancer[num];
EntranHall(person, num); // 舞者入场
DancePartner(person,num); // 舞者匹配
return 0;
}

View File

@@ -10,9 +10,8 @@ void dispmenu()
cout<<"3-元素出队\n";
cout<<"4-取队头元素\n";
cout<<"5-取队尾元素\n";
cout<<"6-清空队\n";
cout<<"7-测队空\n";
cout<<"8-显示队列元素\n";
cout<<"6-测队空\n";
cout<<"7-显示队列元素\n";
cout<<"0-退出\n";
}
@@ -29,7 +28,7 @@ int main()
do
{
dispmenu(); // 显示主菜单
cout<<"功能选择(1~80 退出):";
cout<<"功能选择(1~70 退出):";
cin>>choice;
switch(choice)
{
@@ -37,7 +36,7 @@ int main()
InitQueue(Q);
cout<<endl<<"创建成功!"<<endl;
break;
case 2: //入
case 2: //入
cout<<"输入要插入的元素值:"<<endl;
cin>>e;
cout<<endl;
@@ -50,7 +49,7 @@ int main()
cout<<endl<<"入队不成功!"<<endl;
break;
case 3: // 出
case 3: // 出
if(DeQueue(Q,e))
{
cout<<endl<<"出队成功!出队元素为:"<<e<<endl;
@@ -64,9 +63,9 @@ int main()
case 4: // 获取队头元素
if(GetHead(Q,e))
{
cout<<"队列元素为:"<<endl;
DispQueue(Q);
cout<<endl<<"队头元素为:"<<e<<endl;
cout<<"队列元素为:"<<endl;
DispQueue(Q);
}
else
cout<<endl<<"队空!"<<endl;
@@ -74,33 +73,30 @@ int main()
case 5: // 获取队尾元素
if(GetTail(Q,e))
{
cout<<"队列元素为:"<<endl;
DispQueue(Q);
cout<<endl<<"队尾元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!"<<endl;
break;
case 6: // 清空队
ClearQueue(Q);
cout<<endl<<"队已空!"<<endl;
case 7: // 测队空
case 6: // 测队空
if(QueueEmpty(Q))
cout<<endl<<"空队!"<<endl;
else
cout<<endl<<"不是空队!"<<endl;
break;
case 8: // 查看队列元素
case 7: // 查看队列元素
DispQueue(Q);
cout<<endl;
cin.get(pause);
system("pause");
break;
case 0: // 退出
DestroyQueue(Q);
cout<<"结束运行Bye-bye!"<<endl;
break;
default: // 无效选择
cout<<"无效选择!\n";
cout<<"Invalid choice\n";
break;
}
}while(choice!=0);

View File

@@ -10,17 +10,18 @@ void dispmenu()
cout<<"2-元素入栈\n";
cout<<"3-元素出栈\n";
cout<<"4-取栈顶元素\n";
cout<<"5-헌왕攬\n";
cout<<"6-꿎攬왕\n";
cout<<"7-鞫刻攬禱羹\n";
cout<<"5-测栈空\n";
cout<<"6-显示栈元素\n";
cout<<"0-退出\n";
}
char pause;
//主函数
int main()
{
int e;
SNode<int> * S;
LNode<int> * S;
system("cls"); // 清屏
int choice;
do
@@ -66,26 +67,24 @@ int main()
else
cout<<endl<<"栈空!"<<endl;
break;
case 5: // 헌왕攬
DestroyStack(S);
cout<<"攬綠헌왕!"<<endl;
break;
case 6: //꿎攬왕
case 5: //测栈空
if(StackEmpty(S))
cout<<endl<<"空栈!"<<endl;
else
cout<<endl<<"不是空栈!"<<endl;
break;
case 7: //鞫刻攬禱羹
case 6: //显示栈元素
DispStack(S);
cout<<endl;
cin.get(pause);
system("pause");
break;
case 0: //退出
DestroyStack(S);
cout<<"써監頓契Bye-bye!"<<endl;
cout<<"结束运行Bye-bye"<<endl;
break;
default: //非法选择
cout<<"轟槻朞嶝!\n";
cout<<"Invalid choice\n";
break;
}
}while(choice!=0);

View File

@@ -1,44 +1,42 @@
template <class DT>
struct SNode // 结点
struct LNode //结点
{
DT data; // 数据域,存储数据元素值
SNode *next; // 指针域,指向下一个结点
DT data; //数据域,存储数据元素值
LNode *next;//指针域,指向下一个结点
};
//【算法3.6】
template <class DT>
bool InitStack(SNode<DT> *&S) // 创建空链栈
void InitStack(LNode<DT> *&S)//创建空链栈
{
//L=new LNode<DT>; //创建头结点
//if(!L) exit(1); //创建失败,结束运行
S=NULL;
return true;
}
//【算法3.7】
template <class DT>
void DestroyStack(SNode<DT> *(&S)) // 释放链栈所占内存
void DestroyStack(LNode<DT> *(&S))//释放链栈
{
SNode<DT> *p;
while(S) //从头结点开始,依次释放结点
LNode<DT> *p;
while(S)//从头结点开始,依次释放结点
{
p=S;
S=S->next;
delete p;
}
S=NULL;
//L=NULL;//头结点指向空
}
//【算法3.8】
template<class DT>
bool Push(SNode<DT> *&S,DT e)
bool Push(LNode<DT> *&S,DT e)
{
SNode<DT> *p;
p=new SNode<DT>;
if(!p)
return false; //创建失败,结束运行
LNode<DT> *p;
p=new LNode<DT>;
if(!p) return false; //创建失败,结束运行
p->data=e; // 新结点赋值
p->next=S; //结点S链接到p结点之后
S=p;
@@ -47,9 +45,9 @@ bool Push(SNode<DT> *&S,DT e)
//【算法3.9】
template<class DT>
bool Pop(SNode<DT> *&S,DT &e)
bool Pop(LNode<DT> *&S,DT &e)
{
SNode<DT> *p;
LNode<DT> *p;
if(S==NULL) return false;
p=S;
e=p->data;
@@ -61,9 +59,9 @@ bool Pop(SNode<DT> *&S,DT &e)
//【算法3.10】
template<class DT>
bool GetTop(SNode<DT> *S,DT &e)
bool GetTop(LNode<DT> *S,DT &e)
{
SNode<DT> *p;
LNode<DT> *p;
if(S==NULL) return false;
p=S;
e=p->data;
@@ -72,7 +70,7 @@ bool GetTop(SNode<DT> *S,DT &e)
//测栈空
template<class DT>
bool StackEmpty(SNode<DT> *S)
bool StackEmpty(LNode<DT> *S)
{
if(S==NULL)
return true;
@@ -82,9 +80,9 @@ bool StackEmpty(SNode<DT> *S)
//显示栈内容
template<class DT>
void DispStack(SNode<DT> *S)
void DispStack(LNode<DT> *S)
{
SNode<DT> *p;
LNode<DT> *p;
p=S;
while(p)
{

View File

@@ -1,126 +0,0 @@
#include<iostream>//cout,cin
using namespace std;
#include "SqQueue.h"
char pause;
void dispmenu() //菜单
{
cout<<endl;
cout<<"1-初始化顺序队列\n";
cout<<"2-元素入队\n";
cout<<"3-元素出队\n";
cout<<"4-取队头元素\n";
cout<<"5-取队尾元素\n";
cout<<"6-清空队\n";
cout<<"7-测队空\n";
cout<<"8-测队满\n";
cout<<"9-显示队列元素\n";
cout<<"10-显示队头、队尾指针\n";
cout<<"0-退出\n";
}
//主函数
int main()
{
int i;
int e;
SqQueue<int> Q; // 元素类型为整型的顺序队列
system("cls"); // 清屏
int choice;
do
{
dispmenu(); //显示主菜单
cout<<"功能选择(1~100 退出!):";
cin>>choice;
switch(choice)
{
case 1: // 初始化顺序队列
cout<<"请输入要创建的顺序队列的长度";
cin>>i;
cout<<endl;
InitQueue (Q,i);
cout<<endl<<"创建成功!"<<endl;
break;
case 2: // 入队
cout<<"输入要入队的元素值:"<<endl;
cin>>e;
cout<<endl;
if(EnQueue(Q,e))
{
cout<<endl<<"入队成功!入队后队列元素为:"<<endl;
DispQueue(Q);
}
else
cout<<endl<<"队满,不能入队!"<<endl;
break;
case 3: // 出队
if(DeQueue(Q,e))
{
cout<<endl<<"队列元素为:";
DispQueue(Q);
cout<<endl<<"出队元素为:"<<e<<endl;
}
else
cout<<endl<<"队空,不能出队!"<<endl;
break;
case 4: // 取队头元素
if(GetHead(Q,e))
{
cout<<endl<<"队列元素为:";
DispQueue(Q);
cout<<endl<<"队头元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!"<<endl;
break;
case 5: // 取队尾元素
if(GetTail(Q,e))
{
cout<<endl<<"队列元素为:";
DispQueue(Q);
cout<<endl<<"队尾元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!无数据元素"<<endl;
break;
case 6: // 清空队
ClearQueue(Q);
cout<<"队已清空!"<<endl;
break;
case 7: // 测队空
if(QueueEmpty(Q))
cout<<endl<<"空队!"<<endl;
else
cout<<endl<<"非空队!"<<endl;
break;
case 8: // 测队满
if(QueueFull(Q))
cout<<endl<<"满队!"<<endl;
else
cout<<endl<<"非满队!"<<endl;
break;
case 9: // 显示队列元素
DispQueue(Q);
cout<<endl;
break;
case 10:
cout<<"\nQ.fornt="<<Q.front<<endl;
cout<<"Q.rear="<<Q.rear<<endl;
break;
case 0: // 退出
DestroyQueue(Q);
cout<<"结束运行Bye-bye!"<<endl;
break;
default: // 无效选择
cout<<"无效选择!\n";
break;
}
}while(choice!=0);
return 0;
}//end of main function

View File

@@ -13,11 +13,8 @@ void dispmenu()
cout<<"2-元素入栈\n";
cout<<"3-元素出栈\n";
cout<<"4-取栈顶元素\n";
cout<<"5-清空栈\n";
cout<<"6-测栈空\n";
cout<<"7-测栈满\n";
cout<<"8-显示栈元素\n";
cout<<"9-查看栈顶指针\n";
cout<<"5-测栈空\n";
cout<<"6-显示栈元素\n";
cout<<"0-退出\n";
}
@@ -50,17 +47,17 @@ int main()
cin>>e;
if(Push(S,e))
{
cout<<"入栈成功!入栈后栈元素为:"<<endl;
cout<<"入栈成功!入栈后栈元素为:"<<endl;
DispStack(S);
}
else
cout<<endl<<"栈满,不能入栈!"<<endl;
cout<<endl<<"入栈不成功"<<endl;
break;
case 3: // 出栈
if(Pop(S,e))
{
cout<<"出栈成功!出栈元素为:"<<e<<endl;
cout<<"出栈后栈元素为:"<<endl;
cout<<"出栈后栈元素为:"<<endl;
DispStack(S);
}
else
@@ -74,36 +71,22 @@ int main()
else
cout<<endl<<"栈空!"<<endl;
break;
case 5: // 清空栈
ClearStack(S);
cout<<endl<<"栈已空!"<<endl;
break;
case 6: // 测栈空
case 5: // 测栈空
if(StackEmpty(S))
cout<<endl<<"空栈!"<<endl;
else
cout<<endl<<"不是空栈!"<<endl;
break;
case 7: // 测栈满
if(StackFull(S))
cout<<endl<<"栈满!"<<endl;
else
cout<<endl<<"栈不满!"<<endl;
break;
case 8: // 显示栈元素
case 6: // 显示栈元素
DispStack(S);
cout<<endl;
break;
case 9: // 显示栈顶指针
cout<<"栈顶指针top= "<<S.top<<endl;
cout<<endl;
break;
case 0: // 退出
case 0: // 退出
DestroyStack(S);
cout<<"结束运行 Bye-bye!"<<endl;
cout<<"结束运行 Bye-bye"<<endl;
break;
default: // 无效选择
cout<<"无效选择!\n";
cout<<"Invalid choice\n";
break;
}
}while(choice!=0);

View File

@@ -87,21 +87,3 @@ void DispStack(SqStack<DT> S)
cout<<endl;
}
template<class DT>
void ClearStack(SqStack<DT> &S)
{
S.top=-1;
}
template<class DT>
int StackFull(SqStack<DT> S)
{
if(S.top==S.stacksize-1)
return 1;
else
return 0;
}

View File

@@ -1,6 +1,7 @@
#include<iostream> //cout,cin
using namespace std;
#include"SqStack.h"
#include<stdlib.h> // atoi()
char pause;
@@ -51,9 +52,9 @@ char Precede(char t1,char t2) //
}
bool In(char ch) // 判断 ch 是否为运算符
bool In(char c) // 判断 c 是否为运算符
{
switch(ch)
switch(c)
{
case'+':
case'-':
@@ -69,21 +70,21 @@ bool In(char ch) //
float Operate(float a,char theta,float b)
{ // 实施一次运算
float ch;
float c;
switch(theta)
{
case'+':ch=a+b;
case'+':c=a+b;
break;
case'-':ch=a-b;
case'-':c=a-b;
break;
case'*':ch=a*b;
case'*':c=a*b;
break;
case'/':ch=a/b;
case'/':c=a/b;
}
return ch;
return c;
}
//算法3.12
float Val_Exp(char *exp) // 中缀表达式求值。
{
SqStack<char> OP; // 运算符栈
@@ -91,82 +92,82 @@ float Val_Exp(char *exp) //
InitStack(OP,30);
InitStack(OD,30);
char theta;
float a,b,result;
char ch,x; // 存放由键盘接收的字符
float a,b,d;
char c,x; // 存放由键盘接收的字符
char z[6]; // 存放符点数字符串
int i;
Push(OP,'='); // # 是表达式结束标志
ch=*exp++;
c=*exp++;
GetTop(OP,x);
while(ch!='='||x!='=')
while(c!='='||x!='=')
{
if(ch>='0'&&ch<='9'||ch=='.') // ch 是操作数
if(c>='0'&&c<='9'||c=='.') // c 是操作数
{
i=0;
do
{
z[i]=ch;
z[i]=c;
i++;
ch=*exp++;
} while(ch>='0'&&ch<='9'||ch=='.');
c=*exp++;
} while(c>='0'&&c<='9'||c=='.');
z[i]='\0';
result=atof(z); // 将字符串数组转为符点型存于result
Push(OD,result);
d=atof(z); // 将字符串数组转为符点型存于d
Push(OD,d);
}
else if(In(ch)) // 是7种运算符之一
switch(Precede(x,ch))
else if(In(c)) // 是7种运算符之一
switch(Precede(x,c))
{
case'<':Push(OP,ch); // 栈顶元素优先权低
ch=*exp++;
case'<':Push(OP,c); // 栈顶元素优先权低
c=*exp++;
break;
case'=':Pop(OP,x); // 脱括号并接收下一字符
ch=*exp++;
c=*exp++;
break;
case'>':Pop(OP,theta); // 退栈并将运算结果入栈
Pop(OD,b);
Pop(OD,a);
Push(OD,Operate(a,theta,b));
}
else // ch是非法字符
else // c是非法字符
{
cout<<"ERROR3"<<endl;;
exit(0);
}
GetTop(OP,x);
}
GetTop(OD,result);
GetTop(OD,d);
DestroyStack(OP);
DestroyStack(OD);
return result;
return d;
}
void CreatePostExp(char * exp,char * &postexp) // 由中缀式求后缀式
{
char ch,x;
char c,x;
int i=0;
SqStack<char> OP;
InitStack(OP,30);
Push(OP,'='); // # 是表达式结束标志
cout<<"中缀表达式:"<<exp<<endl;
ch=*exp++;
while(ch)
c=*exp++;
while(c)
{
if((ch>='0'&&ch<='9')||ch=='.')
if((c>='0'&&c<='9')||c=='.')
{
postexp[i++]=ch;
ch=*exp++;
postexp[i++]=c;
c=*exp++;
}
if(In(ch)) // 是7种运算符之一
if(In(c)) // 是7种运算符之一
{
postexp[i++]=' ';
GetTop(OP,x);
switch(Precede(x,ch))
switch(Precede(x,c))
{
case'<':Push(OP,ch); // 栈顶元素优先权低
ch=*exp++;
case'<':Push(OP,c); // 栈顶元素优先权低
c=*exp++;
break;
case'=':Pop(OP,x); // 脱括号并接收下一字符
ch=*exp++;
c=*exp++;
break;
case'>':
Pop(OP,postexp[i++]); // 运算符出栈输出
@@ -179,43 +180,42 @@ void CreatePostExp(char * exp,char * &postexp) //
DestroyStack(OP);
}
//算法3.13
float Val_PostExp(char *postexp) // 后缀表达式求值
{
int i;
char z[6];
float result=0,d=0,a,b;
char ch;
float v=0,d=0,a,b;
char c;
SqStack<float> OD;
InitStack(OD,30);
ch=*postexp++;
while(ch!='\0')
c=*postexp++;
while(c!='\0')
{
if(ch>='0'&&ch<='9'||ch=='.') // ch为操作数符号
if(c>='0'&&c<='9'||c=='.') // c为操作数符号
{
i=0;
do
{
z[i++]=ch;
ch=*postexp++; // 取下一个操作数符号
} while(ch>='0'&&ch<='9'||ch=='.');
z[i++]=c;
c=*postexp++; // 取下一个操作数符号
} while(c>='0'&&c<='9'||c=='.');
z[i]='\0';
d=atof(z); // 将字符串数组转为符点型存于result
d=atof(z); // 将字符串数组转为符点型存于d
Push(OD,d); // 操作数进栈
}
if(In(ch)) // ch为运算符
if(In(c)) // c为运算符
{
Pop (OD,a);
Pop (OD,b);
Push (OD,Operate(b,ch,a));
ch=*postexp++;
Pop (OD,a);
Push (OD,Operate(a,c,b));
c=*postexp++;
}
ch=*postexp++;
c=*postexp++;
}
Pop (OD,result);
DestroyStack(OD);
return result;
Pop (OD,v);
//DestoryStack(OD);
return v;
}
@@ -224,6 +224,7 @@ void main()
{
//int i;
char exp[20]="(2.2+5)+4*(5-3.1)=";
char *postexp;
postexp=new char[30];
*postexp='\0';
@@ -275,7 +276,7 @@ void main()
cout<<"\n结束运行Bye-Bye!"<<endl;
break;
default://
cout<<"\n无效选择!\n";
cout<<"\nInvalid choice\n";
break;
}
}while(choice!=0);

View File

@@ -0,0 +1,38 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_project_file>
<FileVersion major="1" minor="6" />
<Project>
<Option title="BracketsMatch" />
<Option pch_mode="2" />
<Option compiler="gcc" />
<Build>
<Target title="Debug">
<Option output="bin/Debug/BracketsMatch" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Debug/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-g" />
</Compiler>
</Target>
<Target title="Release">
<Option output="bin/Release/BracketsMatch" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Release/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-O2" />
</Compiler>
<Linker>
<Add option="-s" />
</Linker>
</Target>
</Build>
<Compiler>
<Add option="-Wall" />
<Add option="-fexceptions" />
</Compiler>
<Unit filename="BracketsMatch.cpp" />
<Extensions />
</Project>
</CodeBlocks_project_file>

View File

@@ -0,0 +1,107 @@
/***链栈实现括号匹配***/
#include<iostream>
using namespace std;
#define OK 1
#define ERROR 0
#define OVERFLOW -2
typedef char SElemType;
typedef int Status;
typedef struct SNode{
int data;
struct SNode *next;
}SNode,*LinkStack;
Status InitStack(LinkStack &S)
{
S = NULL;
return OK;
}
bool StackEmpty(LinkStack S)
{
if(!S)
return true;
return false;
}
Status Push(LinkStack &S,SElemType e)
{
SNode *p = new SNode;
if(!p)
{
return OVERFLOW;
}
p->data = e;
p->next = S;
S = p;
return OK;
}
Status Pop(LinkStack &S,SElemType &e)
{
SNode *p;
if(!S)
return ERROR;
e = S->data;
p = S;
S = S->next;
delete p;
return OK;
}
Status GetTop(LinkStack &S,SElemType &e)
{
if(!S)
return ERROR;
e = S->data;
return OK;
}
//括号的匹配
Status Matching(LinkStack S)
{
//检验表达式中所含括号是否正确匹配如果匹配则返回true否则返回false。
//表达式以“#”结束
int flag=1; //标记查找结果以控制循环及返回结果
char c;
SElemType x;
cin>>c; //读入第一个字符
while(c!='#' && flag)
{
switch (c){
case '[':
case '(': //若是左括号,则将其压入栈
Push(S,c);
break;
case ')' : //若是右括号“)”,则根据当前栈顶元素的值分情况考虑
GetTop(S,x);
if (!StackEmpty(S) && x=='(' ) //若栈非空且栈顶元素是“(”,则匹配成功
Pop(S,x);
else
flag=0; //若栈空或栈顶元素不是“(”,则非法
break;
case ']' : //若是右括号“]”,则根据当前栈顶元素的值分情况考虑
GetTop(S,x);
if (!StackEmpty(S) && x=='[' ) //若栈顶元素是“[”,则匹配成功
Pop(S,x);
else
flag=0; //若栈空或栈顶元素不是“[”,则非法
break;
}//switch
cin>>c; //继续读入下一个字符
}//while
if (StackEmpty(S) && flag )
return 1;
else
return 0;
}//Matching
int main()
{
LinkStack S;
InitStack(S);
cout<<"请输入待匹配的表达式,以“#”结束:"<<endl;
int flag = (int)Matching(S);
if(flag)
cout<<"括号匹配成功!"<<endl;
else
cout<<"括号匹配失败!"<<endl;
return 0;
}

View File

@@ -0,0 +1,10 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_layout_file>
<FileVersion major="1" minor="0" />
<ActiveTarget name="Debug" />
<File name="BracketsMatch.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="2162" topLine="83" />
</Cursor>
</File>
</CodeBlocks_layout_file>

View File

@@ -0,0 +1,40 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_project_file>
<FileVersion major="1" minor="6" />
<Project>
<Option title="DancePartner" />
<Option pch_mode="2" />
<Option compiler="gcc" />
<Build>
<Target title="Debug">
<Option output="bin/Debug/DancePartner" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Debug/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-g" />
</Compiler>
</Target>
<Target title="Release">
<Option output="bin/Release/DancePartner" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Release/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-O2" />
</Compiler>
<Linker>
<Add option="-s" />
</Linker>
</Target>
</Build>
<Compiler>
<Add option="-Wall" />
<Add option="-fexceptions" />
</Compiler>
<Unit filename="DancePartner.cpp" />
<Extensions>
<lib_finder disable_auto="1" />
</Extensions>
</Project>
</CodeBlocks_project_file>

View File

@@ -0,0 +1,117 @@
#include<iostream>
#include<string>
using namespace std;
struct dancer
{ string name;
char sex;
};
struct Node
{ dancer data;
Node* next;
}*front,*rear;
struct LinkQueue
{ Node *front;
Node *rear;
}Gentleman, Lady;
void InitialLinkQueue(LinkQueue& queue)
{ queue.front=new Node;
queue.front->next=NULL;
queue.rear=queue.front;
}
void DeleteLinkQueue(LinkQueue& queue)
{ Node *p;
while(queue.front!=NULL)
{ p=queue.front;
queue.front=queue.front->next;
delete p;
}
}
void EnQueue(LinkQueue& queue,dancer& value)
{
Node* s=new Node;
s->data=value;
s->next=queue.rear->next;
queue.rear->next=s;
queue.rear=s;
}
int IsEmpty(LinkQueue queue)
{
if (queue.front==queue.rear) return 1;
else return 0;
}
dancer DeQueue(LinkQueue &queue)
{ dancer x;
Node *p;
if (IsEmpty(queue)) throw "队列为空,无法出队列!";
p=queue.front->next;
x=p->data;
queue.front->next=p->next;
if (p==queue.rear) queue.rear=queue.front;
delete p;
return x;
}
dancer GetHead(LinkQueue queue)
{ if (IsEmpty(queue)) throw "队列为空,无法取得队首元素!";
return queue.front->next->data;
}
void QueueTranverse(LinkQueue queue)
{ Node *p;
p=queue.front->next;
while(p!=NULL)
{ cout<<(p->data).name<<" ";
p=p->next;
}
cout<<endl;
}
int main()
{ cout<<"请输入舞伴总数量:"<<endl;
int num;
cin>>num;
InitialLinkQueue(Gentleman);
InitialLinkQueue(Lady);
for(int i=0;i<num;i++)
{ cout<<"请输入舞者性别(F(女) or M(男))及姓名:"<<endl;
char sex;
cin>>sex;
string name;
cin>>name;
dancer newdancer;
newdancer.name=name;
newdancer.sex=sex;
if(sex=='F')
EnQueue(Lady,newdancer);
if(sex=='M')
EnQueue(Gentleman,newdancer);
}
while ( (!IsEmpty(Gentleman)) && (!IsEmpty(Lady)) )
cout<<DeQueue(Gentleman).name<<"<---配对--->"<<DeQueue(Lady).name<<endl;
if (!IsEmpty(Gentleman))
cout<<GetHead(Gentleman).name<<"先生还在等着呢!"<<endl;
else
if (!IsEmpty(Lady))
cout<<GetHead(Lady).name<<"女士还在等着呢!"<<endl;
else
cout<<"配对完美结束!"<<endl;
DeleteLinkQueue(Gentleman);
DeleteLinkQueue(Lady);
system("pause");
return 0;
}

View File

@@ -0,0 +1,5 @@
# depslib dependency file v1.0
1617974749 source:c:\users\86138\desktop\zykathy\dancepartner(Îè°éÎÊÌâ)\dancepartner.cpp
<iostream>
<string>

View File

@@ -0,0 +1,10 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_layout_file>
<FileVersion major="1" minor="0" />
<ActiveTarget name="Debug" />
<File name="DancePartner.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1512" topLine="18" />
</Cursor>
</File>
</CodeBlocks_layout_file>

View File

@@ -0,0 +1,38 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_project_file>
<FileVersion major="1" minor="6" />
<Project>
<Option title="EvaluateExpression" />
<Option pch_mode="2" />
<Option compiler="gcc" />
<Build>
<Target title="Debug">
<Option output="bin/Debug/EvaluateExpression" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Debug/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-g" />
</Compiler>
</Target>
<Target title="Release">
<Option output="bin/Release/EvaluateExpression" prefix_auto="1" extension_auto="1" />
<Option object_output="obj/Release/" />
<Option type="1" />
<Option compiler="gcc" />
<Compiler>
<Add option="-O2" />
</Compiler>
<Linker>
<Add option="-s" />
</Linker>
</Target>
</Build>
<Compiler>
<Add option="-Wall" />
<Add option="-fexceptions" />
</Compiler>
<Unit filename="EvaluateExpression.cpp" />
<Extensions />
</Project>
</CodeBlocks_project_file>

View File

@@ -0,0 +1,147 @@
/***链栈实现表达式求值***/
#include<iostream>
#include<string>
using namespace std;
const char oper[7] = {'+','-','*','/','(',')','#'};
#define OK 1
#define ERROR 0
#define OVERFLOW -2
typedef char SElemType;
typedef int Status;
typedef struct SNode{
int data;
struct SNode *next;
}SNode,*LinkStack;
Status InitStack(LinkStack &S)
{
S = NULL;
return OK;
}
bool StackEmpty(LinkStack S)
{
if(!S)
return true;
return false;
}
Status Push(LinkStack &S,SElemType e)
{
SNode *p = new SNode;
if(!p)
{
return OVERFLOW;
}
p->data = e;
p->next = S;
S = p;
return OK;
}
Status Pop(LinkStack &S,SElemType &e)
{
SNode *p;
if(!S)
return ERROR;
e = S->data;
p = S;
S = S->next;
delete p;
return OK;
}
Status GetTop(LinkStack &S,SElemType &e)
{
if(!S)
return ERROR;
e = S->data;
return OK;
}
bool In(char ch)
{//判断ch是否为运算符
for(int i = 0;i < 7;i ++)
{
if(ch == oper[i])
{
return true;
}
}
return false;
}
char Precede(char theta1,char theta2)
{//判断运算符优先级
if((theta1 == '('&&theta2 == ')')||(theta1 == '#'&&theta2 == '#'))
{
return '=';
}
else if(theta1 == '('||theta1 == '#'||theta2 == '('
||(theta1 == '+'||theta1 == '-')&&(theta2 == '*'||theta2 == '/'))
{
return '<';
}
else
return '>';
}
char Operate(char first,char theta,char second)
{//计算两数运算结果
switch(theta)
{
case '+':
return (first - '0')+(second - '0')+48;
case '-':
return (first - '0')-(second - '0')+48;
case '*':
return (first - '0')*(second - '0')+48;
case '/':
return (first - '0')/(second - '0')+48;
}
return 0;
}
// 表达式求值
char EvaluateExpression()
{
// 算术表达式求值的算符优先算法。设OPTR和OPND分别为运算符栈和操作数栈
// OP 为运算符集合
LinkStack OPTR,OPND;
char ch,theta,a,b,x,top;
InitStack ( OPTR);
Push (OPTR,'#');
InitStack ( OPND);
ch = getchar();
while (ch != '#' || (GetTop(OPTR,top) ,top!= '#') )
{
if (!In(ch))
{
Push(OPND, ch);
ch = getchar();
} // ch不是运算符则进栈
else
switch (GetTop(OPTR, top),Precede(top,ch))
{ //比较OPTR的栈顶元素和ch的优先权
case '<': //当前字符ch压入OPTR栈读入下一字符ch
Push(OPTR, ch);
ch = getchar();
break;
case '>': //弹出OPTR栈顶的运算符进行相应运算并将运算结果入栈
Pop(OPTR, theta);
Pop(OPND, b);
Pop(OPND, a);
Push(OPND, Operate(a, theta, b));
break;
case '=': //脱括号并接收下一字符
Pop(OPTR, x);
ch = getchar();
break;
} // switch
} // while
GetTop(OPND,ch);
return ch;
} // EvaluateExpression
int main()
{
cout<<"请输入要计算的表达式操作数和结果都在0-9的范围内以#结束):"<<endl;
char res = EvaluateExpression();
cout<<"计算结果为"<<res<<endl;
return 0;
}

View File

@@ -0,0 +1,5 @@
# depslib dependency file v1.0
1617954043 source:c:\users\86138\desktop\zykathy\evaluateexpression(±í´ïʽ¼ÆËã)\evaluateexpression.cpp
<iostream>
<string>

View File

@@ -0,0 +1,10 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<CodeBlocks_layout_file>
<FileVersion major="1" minor="0" />
<ActiveTarget name="Debug" />
<File name="EvaluateExpression.cpp" open="1" top="1" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="2981" topLine="18" />
</Cursor>
</File>
</CodeBlocks_layout_file>

View File

@@ -0,0 +1,97 @@
#include<iostream> //cout,cin
using namespace std;
#include "LinkQueue.h"
void dispmenu()
{//显示主菜单
cout<<endl;
cout<<"1-初始化链队\n";
cout<<"2-元素入队\n";
cout<<"3-元素出队\n";
cout<<"4-取队头元素\n";
cout<<"5-取队尾元素\n";
cout<<"6-测队空\n";
cout<<"7-显示队列元素\n";
cout<<"8-退出\n";
}
char pause;
//主函数
int main()
{
int e;
LinkQueue<int> Q;
system("cls"); //执行系统命令cls清屏
int choice;
do
{
dispmenu(); //显示主菜单
cout<<"Enter choice(1~8):";
cin>>choice;
switch(choice)
{
case 1: //初始化链队
InitQueue(Q);
cout<<endl<<"创建成功!"<<endl;
break;
case 2: //入栈
cout<<"输入要插入的元素值:"<<endl;
cin>>e;
cout<<endl;
if(EnQueue(Q,e))
cout<<endl<<"入队成功!"<<endl;
else
cout<<endl<<"入队不成功!"<<endl;
break;
case 3: //出栈
if(DeQueue(Q,e))
{
cout<<endl<<"出队元素为:"<<e<<endl;
cout<<endl<<"出队成功!"<<endl;
}
else
cout<<endl<<"队空,出队失败!"<<endl;
break;
case 4: //获取队头元素
if(GetHead(Q,e))
{
cout<<endl<<"队头元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!"<<endl;
break;
case 5: //获取队尾元素
if(GetTail(Q,e))
{
cout<<endl<<"队尾元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!"<<endl;
break;
case 6: //测队空
if(QueueEmpty(Q))
cout<<endl<<"空队!"<<endl;
else
cout<<endl<<"不是空队!"<<endl;
break;
case 7: //查看队列元素
DispQueue(Q);
cout<<endl;
cin.get(pause);
system("pause");
break;
case 8: //退出
DestroyQueue(Q);
cout<<"结束运行"<<endl;
break;
default: //非法选择
cout<<"Invalid choice\n";
break;
}
}while(choice!=8);
return 0;
}//end of main function

View File

@@ -35,21 +35,6 @@ void DestroyQueue(LinkQueue<DT> &Q)//
Q.front=Q.front->next;
delete p;
}
Q.rear=Q.front=NULL;
}
template <class DT>
void ClearQueue(LinkQueue<DT> &Q) // 清空链队
{
QNode<DT> *p;
while(Q.front->next) //从队头开始,依次释放结点
{
p=Q.front->next;
Q.front->next=p->next;
delete p;
}
Q.front->next=NULL; // 空队
Q.rear=Q.front;
}
//【算法3.21】 入队

View File

@@ -0,0 +1,88 @@
#include<iostream> //cout,cin
using namespace std;
#include "LinkStack.h"
void dispmenu()
{//显示主菜单
cout<<endl;
cout<<"1-初始化链栈\n";
cout<<"2-元素入栈\n";
cout<<"3-元素出栈\n";
cout<<"4-取栈顶元素\n";
cout<<"5-测栈空\n";
cout<<"6-显示栈元素\n";
cout<<"7-退出\n";
}
char pause;
//主函数
int main()
{
int e;
LNode<int> * S;
system("cls"); // 清屏
int choice;
do
{
dispmenu(); //显示主菜单
cout<<"Enter choice(1~7):";
cin>>choice;
switch(choice)
{
case 1: //初始化链栈
InitStack(S);
cout<<endl<<"创建成功!"<<endl;
break;
case 2: //入栈
cout<<"输入要插入的元素值:"<<endl;
cin>>e;
cout<<endl;
if(Push(S,e))
cout<<endl<<"入栈成功!"<<endl;
else
cout<<endl<<"入栈不成功!"<<endl;
break;
case 3: //出栈
if(Pop(S,e))
{
cout<<endl<<"出栈元素为:"<<e<<endl;
cout<<endl<<"出栈成功!"<<endl;
}
else
cout<<endl<<"栈空,出栈失败!"<<endl;
break;
case 4: //获取栈顶元素
if(GetTop(S,e))
{
cout<<endl<<"栈顶元素为:"<<e<<endl;
}
else
cout<<endl<<"栈空!"<<endl;
break;
case 5: //测栈空
if(StackEmpty(S))
cout<<endl<<"空栈!"<<endl;
else
cout<<endl<<"不是空栈!"<<endl;
break;
case 6: //显示栈元素
DispStack(S);
cout<<endl;
cin.get(pause);
system("pause");
break;
case 7: //退出
DestroyStack(S);
cout<<"结束运行"<<endl;
break;
default: //非法选择
cout<<"Invalid choice\n";
break;
}
}while(choice!=7);
return 0;
}//end of main function

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template <class DT>
struct LNode //结点
{
DT data; //数据域,存储数据元素值
LNode *next;//指针域,指向下一个结点
};
//【算法3.6】
template <class DT>
void InitStack(LNode<DT> *&S)//创建空链栈
{
//L=new LNode<DT>; //创建头结点
//if(!L) exit(1); //创建失败,结束运行
S=NULL;
}
//【算法3.7】
template <class DT>
void DestroyStack(LNode<DT> *(&S))//释放链栈
{
LNode<DT> *p;
while(S)//从头结点开始,依次释放结点
{
p=S;
S=S->next;
delete p;
}
//L=NULL;//头结点指向空
}
//【算法3.8】
template<class DT>
bool Push(LNode<DT> *&S,DT e)
{
LNode<DT> *p;
p=new LNode<DT>;
if(!p) return false; //创建失败,结束运行
p->data=e; // 新结点赋值
p->next=S; //结点S链接到p结点之后
S=p;
return true; // 插入成功返回true
}
//【算法3.9】
template<class DT>
bool Pop(LNode<DT> *&S,DT &e)
{
LNode<DT> *p;
if(S==NULL) return false;
p=S;
e=p->data;
S=S->next;
delete p;
return true; // 删除成功返回true
}
//【算法3.10】
template<class DT>
bool GetTop(LNode<DT> *S,DT &e)
{
LNode<DT> *p;
if(S==NULL) return false;
p=S;
e=p->data;
return true; // 删除成功返回true
}
//测栈空
template<class DT>
bool StackEmpty(LNode<DT> *S)
{
if(S==NULL)
return true;
else
return false;
}
//显示栈内容
template<class DT>
void DispStack(LNode<DT> *S)
{
LNode<DT> *p;
p=S;
while(p)
{
cout<<p->data<<"\t";
p=p->next;
}
cout<<endl;
}

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#include<iostream>//cout,cin
using namespace std;
#include "SqQueue.h"
char pause;
void dispmenu()
{//显示主菜单
cout<<endl;
cout<<"1-初始化顺序队列\n";
cout<<"2-元素入队\n";
cout<<"3-元素出队\n";
cout<<"4-取队头元素\n";
cout<<"5-取队尾元素\n";
cout<<"6-测队空\n";
cout<<"7-测队满\n";
cout<<"8-显示队列元素\n";
cout<<"9-退出\n";
}
//主函数
int main()
{
int i;
int e;
SqQueue<int> Q;//建立容量为20、元素类型为整型的空顺序栈
system("cls");//执行系统命令cls清屏
int choice;
do
{
dispmenu();//显示主菜单
cout<<"Enter choice(1~9):";
cin>>choice;
switch(choice)
{
case 1://初始化顺序队列
cout<<"请输入要创建的顺序队列的长度";
cin>>i;
cout<<endl;
InitQueue (Q,i);
cout<<endl<<"创建成功!"<<endl;
break;
case 2://入队
cout<<"输入要入队的元素值:"<<endl;
cin>>e;
cout<<endl;
if(EnQueue(Q,e))
cout<<endl<<"入队成功!"<<endl;
else
cout<<endl<<"入队不成功!"<<endl;
break;
case 3://出队
if(DeQueue(Q,e))
{
cout<<endl<<"出队元素为:"<<e<<endl;
cout<<endl<<"出队成功!"<<endl;
}
else
cout<<endl<<"队空,出队失败!"<<endl;
break;
case 4://取队头元素
if(GetHead(Q,e))
{
cout<<endl<<"队头元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!"<<endl;
break;
case 5://取队尾元素
if(GetTail(Q,e))
{
cout<<endl<<"队尾元素为:"<<e<<endl;
}
else
cout<<endl<<"队空!"<<endl;
break;
case 6://测队空
if(QueueEmpty(Q))
cout<<endl<<"空队!"<<endl;
else
cout<<endl<<"不是空队!"<<endl;
break;
case 7://测队满
if(QueueFull(Q))
cout<<endl<<"队满!"<<endl;
else
cout<<endl<<"队不满!"<<endl;
break;
case 8://显示队列元素
DispQueue(Q);
cout<<endl;
cin.get(pause);
system("pause");
break;
case 9://退出
DestroyQueue(Q);
cout<<"结束运行"<<endl;
break;
default://非法选择
cout<<"Invalid choice\n";
break;
}
}while(choice!=9);
return 0;
}//end of main function

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template <class DT>
struct SqQueue //顺序队类
{
DT *base; //队列首址
int front; //队头指针
int rear; //队尾指针
int queuesize;//队容量
};
//基本操作的实现
//【算法3.14】
template <class DT>
void InitQueue(SqQueue<DT> &Q, int m)
{//构建函数创建一栈容量为m的空队
Q.base=new DT[m];// 申请队列空间
if(Q.base==NULL)
{
cout<<"未创建成功!";
exit (1);
}
Q.front=Q.rear=0;
Q.queuesize=m;
}
//算法3.15】
template <class DT>
void DestroyQueue(SqQueue<DT> &Q)//析构函数
{//释放队列空间
delete [] Q.base;
Q.front=Q.rear=0;
Q.queuesize=0;
}
//【算法3.16】
template<class DT>
bool EnQueue(SqQueue<DT> &Q,DT e)
{
if((Q.rear+1)%Q.queuesize==Q.front) //队满
return false;
Q.base[Q.rear]=e;
Q.rear=(Q.rear+1)% Q.queuesize;
return true; // 插入成功返回true
}
//【算法3.17】
template<class DT>
bool DeQueue(SqQueue<DT> &Q,DT &e)
{
if(Q.front==Q.rear) //队空
return false;
e=Q.base[Q.front];
Q.front=(Q.front+1)%Q.queuesize;
return true; // 删除成功返回true
}
//【算法3.18】
template<class DT>
bool GetHead(SqQueue<DT> Q,DT &e)
{
if(Q.front==Q.rear) //队空
return false;
e=Q.base[Q.front];
return true; //返回true
}
//取队尾元素
template<class DT>
bool GetTail(SqQueue<DT> Q,DT &e)
{
if(Q.front==Q.rear) //队空
return false;
e=Q.base[(Q.rear - 1+Q.queuesize) % Q.queuesize];
return true; //返回true
}
//测队空
template<class DT>
bool QueueEmpty(SqQueue<DT> Q)
{
if(Q.front==Q.rear)
return true;
else
return false;
}
//测队满
template<class DT>
bool QueueFull(SqQueue<DT> Q)
{
if((Q.rear+1)%Q.queuesize==Q.front) //队满
return true;
else
return false;
}
//显示队列内容
template<class DT>
void DispQueue(SqQueue<DT> Q)
{
int i=Q.front;
while(i!=Q.rear)
{
cout<<Q.base[i]<<"\t";
i=(i+1)%Q.queuesize;
}
cout<<endl;
}

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#include<iostream>//cout,cin
using namespace std;
#include "SqStack.h"
char pause;
void dispmenu()
{ //显示主菜单
cout<<endl;
cout<<"1-初始化顺序栈\n";
cout<<"2-元素入栈\n";
cout<<"3-元素出栈\n";
cout<<"4-取栈顶元素\n";
cout<<"5-测栈空\n";
cout<<"6-显示栈元素\n";
cout<<"7-退出\n";
}
//主函数
int main()
{
int i;
int e;
SqStack<int> S;//建立容量为20、元素类型为整型的空顺序栈
system("cls"); // 清屏
int choice;
do
{
dispmenu(); // 显示主菜单
cout<<"Enter choice(1~7):";
cin>>choice;
switch(choice)
{
case 1: // 初始化顺序栈
cout<<"请输入要创建的顺序栈的长度";
cin>>i;
cout<<endl;
InitStack (S,i);
cout<<endl<<"创建成功!"<<endl;
break;
case 2: // 入栈
cout<<"输入要入栈的元素值:"<<endl;
cin>>e;
cout<<endl;
if(Push(S,e))
cout<<endl<<"入栈成功!"<<endl;
else
cout<<endl<<"入栈不成功!"<<endl;
break;
case 3: // 出栈
if(Pop(S,e))
{
cout<<endl<<"出栈元素为:"<<e<<endl;
cout<<endl<<"出栈成功!"<<endl;
}
else
cout<<endl<<"栈空,出栈失败!"<<endl;
break;
case 4: // 取栈顶元素
if(GetTop(S,e))
{
cout<<endl<<"栈顶元素为:"<<e<<endl;
}
else
cout<<endl<<"栈空!"<<endl;
break;
case 5: // 测栈空
if(StackEmpty(S))
cout<<endl<<"空栈!"<<endl;
else
cout<<endl<<"不是空栈!"<<endl;
break;
case 6: // 显示栈元素
DispStack(S);
cout<<endl;
cin.get(pause);
system("pause");
break;
case 7: // 退出
DestroyStack(S);
cout<<"结束运行"<<endl;
break;
default: // 无效选择
cout<<"Invalid choice\n";
break;
}
}while(choice!=7);
return 0;
}//end of main function

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template <class DT>
struct SqStack // 顺序栈
{
DT *base; // 栈首址
int top; // 栈顶指针
int stacksize; // 栈容量
};
//基本操作的实现
//【算法3.1】 // 初始化栈
template <class DT>
void InitStack(SqStack<DT> &S, int m)
{
S.base=new DT[m]; // 申请栈空间
if(S.base==NULL) // 申请失败,退出
{
cout<<"未创建成功!";
exit (1);
}
S.top=-1; // 设置空栈属性
S.stacksize=m;
}
//算法3.2】 // 销毁栈
template <class DT>
void DestroyStack(SqStack<DT> &S)
{
delete [] S.base; // 释放栈空间
S.top=-1;
S.stacksize=0; // 设置栈属性
}
//【算法3.3】 // 入栈
template<class DT>
bool Push(SqStack<DT> &S,DT e)
{
if(S.top==S.stacksize-1) // 栈满,不能入栈
return false; // 返回false
S.top++;
S.base[S.top]=e;
return true; // 入栈成功返回true
}
//【算法3.4】 // 出栈
template<class DT>
bool Pop(SqStack<DT> &S,DT &e)
{
if(S.top==-1) // 栈空
return false; // 返回false
e=S.base[S.top]; // 取栈顶元素
S.top--; // 栈顶指针下移
return true; // 出栈成功返回true
}
//【算法3.5】 // 获取栈顶元素
template<class DT>
bool GetTop(SqStack<DT> S,DT &e)
{
if(S.top==-1) // 栈空
return false; // 返回false
e=S.base[S.top]; // 栈非空,取栈顶元素
return true; // 返回true
}
// 测栈空
template<class DT>
bool StackEmpty(SqStack<DT> S)
{
if(S.top==-1) // 空栈返回true
return true;
else // 空栈返回false
return false;
}
//显示栈内容
template<class DT>
void DispStack(SqStack<DT> S)
{
int i=S.top;
while(i>=0)
{
cout<<S.base[i--]<<"\t";
}
cout<<endl;
}