双栈的基本操作的实训小结
时间: 2023-12-07 18:34:26 浏览: 18
双栈是一种数据结构,它由两个栈组成,分别称为主栈和辅栈。双栈的基本操作包括入栈、出栈和获取栈顶元素。以下是双栈的基本操作的实训小结:
1. 入栈:将一个元素压入主栈。如果辅栈为空或者待压入的元素小于等于辅栈的栈顶元素,则将该元素也压入辅栈;否则只将该元素压入主栈。
2. 出栈:先从主栈出栈,如果出栈元素等于辅栈的栈顶元素,则同时从辅栈出栈。
3. 获取栈顶元素:返回主栈的栈顶元素。
通过上述基本操作,可以实现双栈的功能,并且保证辅栈中的元素始终按照非递增顺序排列。
相关问题
双栈的基本操作代码c语言
以下是双栈的基本操作代码C语言实现:
1. 采用顺序存储结构实现双栈
```c
#define MAXSIZE 100
typedef struct {
int data[MAXSIZE];
int top1; // 栈1的栈顶指针
int top2; // 栈2的栈顶指针
} DoubleStack;
// 初始化双栈
void InitDoubleStack(DoubleStack *S) {
S->top1 = -1;
S->top2 = MAXSIZE;
}
// 判断栈1是否为空
int IsEmpty1(DoubleStack *S) {
return S->top1 == -1;
}
// 判断栈2是否为空
int IsEmpty2(DoubleStack *S) {
return S->top2 == MAXSIZE;
}
// 判断双栈是否为空
int IsEmpty(DoubleStack *S) {
return IsEmpty1(S) && IsEmpty2(S);
}
// 判断栈1是否已满
int IsFull1(DoubleStack *S) {
return S->top1 + 1 == S->top2;
}
// 判断栈2是否已满
int IsFull2(DoubleStack *S) {
return S->top2 - 1 == S->top1;
}
// 判断双栈是否已满
int IsFull(DoubleStack *S) {
return IsFull1(S) || IsFull2(S);
}
// 栈1入栈
void Push1(DoubleStack *S, int x) {
if (IsFull1(S)) {
printf("Stack1 is full.\n");
return;
}
S->data[++S->top1] = x;
}
// 栈2入栈
void Push2(DoubleStack *S, int x) {
if (IsFull2(S)) {
printf("Stack2 is full.\n");
return;
}
S->data[--S->top2] = x;
}
// 栈1出栈
int Pop1(DoubleStack *S) {
if (IsEmpty1(S)) {
printf("Stack1 is empty.\n");
return -1;
}
return S->data[S->top1--];
}
// 栈2出栈
int Pop2(DoubleStack *S) {
if (IsEmpty2(S)) {
printf("Stack2 is empty.\n");
return -1;
}
return S->data[S->top2++];
}
```
2. 采用链表结构实现双栈
```c
typedef struct StackNode {
int data;
struct StackNode *next;
} StackNode, *LinkStackPtr;
typedef struct {
LinkStackPtr top1; // 栈1的栈顶指针
LinkStackPtr top2; // 栈2的栈顶指针
} DoubleLinkStack;
// 初始化双栈
void InitDoubleLinkStack(DoubleLinkStack *S) {
S->top1 = NULL;
S->top2 = NULL;
}
// 判断栈1是否为空
int IsEmpty1(DoubleLinkStack *S) {
return S->top1 == NULL;
}
// 判断栈2是否为空
int IsEmpty2(DoubleLinkStack *S) {
return S->top2 == NULL;
}
// 判断双栈是否为空
int IsEmpty(DoubleLinkStack *S) {
return IsEmpty1(S) && IsEmpty2(S);
}
// 栈1入栈
void Push1(DoubleLinkStack *S, int x) {
LinkStackPtr p = (LinkStackPtr)malloc(sizeof(StackNode));
p->data = x;
p->next = S->top1;
S->top1 = p;
}
// 栈2入栈
void Push2(DoubleLinkStack *S, int x) {
LinkStackPtr p = (LinkStackPtr)malloc(sizeof(StackNode));
p->data = x;
p->next = S->top2;
S->top2 = p;
}
// 栈1出栈
int Pop1(DoubleLinkStack *S) {
if (IsEmpty1(S)) {
printf("Stack1 is empty.\n");
return -1;
}
LinkStackPtr p = S->top1;
int x = p->data;
S->top1 = p->next;
free(p);
return x;
}
// 栈2出栈
int Pop2(DoubleLinkStack *S) {
if (IsEmpty2(S)) {
printf("Stack2 is empty.\n");
return -1;
}
LinkStackPtr p = S->top2;
int x = p->data;
S->top2 = p->next;
free(p);
return x;
}
```
istio ingress 双栈
Istio Ingress也支持双栈(Dual-Stack)配置,即支持IPv4和IPv6地址。要在Istio Ingress中配置双栈,您需要在Istio Gateway的配置中指定IPv4和IPv6地址。例如,您可以在配置文件中添加以下内容:
```
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
name: my-gateway
spec:
selector:
istio: ingressgateway
servers:
- hosts:
- "example.com"
port:
name: http
number: 80
protocol: HTTP
tls:
httpsRedirect: true
bind:
address: "0.0.0.0"
port: 80
protocol: HTTP
---
hosts:
- "example.com"
port:
name: https
number: 443
protocol: HTTPS
tls:
mode: SIMPLE
credentialName: example-com-cert
bind:
address: "::"
port: 443
protocol: HTTPS
```
在上面的配置中,`bind`字段分别指定了IPv4地址`0.0.0.0`和IPv6地址`::`,并且分别绑定了HTTP和HTTPS端口。您可以根据需要更改这些地址和端口以适应您的环境。请注意,要使用双栈配置,您需要确保您的Kubernetes集群和网络支持IPv4和IPv6。