【数据结构】栈与队列

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ADT栈

---------------

#include<stdio.h>
#include<stdlib.h>

//Stack CreatStack(MAX_STACK_SIZE)
#define MAX_STACK_SIZE 10
typedef struct 
{
	int key;
} element;
element stack[MAX_STACK_SIZE];
int top = -1;

void Add(int &top,int item)
{
	if(top<MAX_STACK_SIZE-1)
	{
		stack[top].key = item;
		printf("%d\n",stack[top].key);
		top++;
	}
	else
	{
		printf("The stack is full.\n");
	}
}
element Del(int &top)
{
	if(top>=0)
	{
		top--;
		printf("top=%d\n",top);
		return stack[top];
	}
	else
	{
		printf("The stack is empty.\n");
	}
}
int main()
{
	int i=0;
	Add(top,212);
	Del(top);
	return 0;
}
---------------------

Queue队列

---------------

#include<stdio.h>

//Queue CreateQueue(max_queue_size)
#define MAX_QUEUE_SIZE 10
typedef struct
{
	int key;
} element;
element queue[MAX_QUEUE_SIZE];
int rear =-1;
int front = -1;
void addq(int &rear,element item)
{
	if(rear >= MAX_QUEUE_SIZE)
	{
		printf("The queue is full.\n");
	}
	else
	{
		rear++;
		queue[rear].key=item.key;
		printf("%d\n",queue[rear]);
	}
}
element deleteq(int &rear,int &front)
{
	if(rear==-1)
	{
		printf("The queue is empty.\n");
	}
	else
	{
		front++;
		return queue[front];
	}
}
void main()
{
	element item;
	item.key = 212;
	addq(rear,item);
	deleteq(rear,front);
}
-------------

循环队列

-----

#include<stdio.h>

////Queue CreateQueue(max_queue_size)
#define MAX_QUEUE_SIZE 10
typedef struct
{
	int key;
} element;
element queue[MAX_QUEUE_SIZE];
int rear =0;
int front = 0;
void addq(int &rear,int &front,element item)
{
	if((rear-front==-1)||(rear-front==MAX_QUEUE_SIZE-1))
	{
		printf("The queueCycle is full.\n");
	}
	else
	{
		rear=(rear+1)%MAX_QUEUE_SIZE;
		queue[rear].key=item.key;
		printf("%d\n",int &front)
{
	if(rear==front)
	{
		printf("The queue is empty.\n");
	}
	else
	{
		front=(front+1)%MAX_QUEUE_SIZE;
		return queue[front];
	}
}
void main()
{
	element item;
	item.key = 212;
	while(1)
	{
		if(!((rear-front==-1)||(rear-front==MAX_QUEUE_SIZE-1)))
			addq(rear,front,item);
		else
		{
			printf("Full.\n");
			break;
		}
	}
	while(1)
	{
		if(!(rear==front))
			deleteq(rear,front);
		else
		{
			printf("Empty.\n");
			break;
		}
	}
}


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原文链接:https://www.f2er.com/datastructure/383202.html

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