队列实现杨辉三角形（数据结构）（C语言）

太过爱你忘了你带给我的痛 2022-05-17 11:46 259阅读 0赞

### 利用队列的基本功能输出杨辉三角形： ###

*  实现方案：

#include "SequenceQueue.h"
    
    int main()
    {
    	int N, num, i;
    	Queue *que1 = NULL, *que2 = NULL, *tmp = NULL;
    	
    	if(QueueInit(&que1) != SUCCESS || QueueInit(&que2) != SUCCESS)
    	{
    		printf("Init Error!\n");
    		return 0;
    	}
    	
    	printf("Please input:\n");
    	scanf("%d", &N);
    	
    	for(i = 0; i < N; i++)
    	{
    		if(0 == i)
    		{
    			Push(que1, 0);
    			Push(que1, 1);
    			Push(que1, 0);
    			num = 1;
    			printf("%4d", num);
    		}
    		else
    		{
    			Push(que2, 0);
    			while(1 != QueueLength(que1))
    			{
    				num = Pop(que1);
    				num = num + Get(que1);
    				Push(que2, num);
    				printf("%4d ", num);
    			}
    			Push(que2, 0);
    			
    			tmp = que1;
    			que1 = que2;
    			que2 = tmp;
    			QueueClear(que2);
    		}
    		
    		printf("\n");
    	}
    	
    	return 0;
    }

*  头文件：

#ifndef _SEQUENCEQUEUE_H
    #define _SEQUENCEQUEUE_H
    
    #include <stdio.h>
    #include <stdlib.h>
    
    #define SIZE 1024
    #define SUCCESS 10000
    #define FAILURE 10001
    #define TRUE    10002
    #define FALSE   10003
    
    typedef struct SequenceQueue
    {
    	int data[SIZE];
    	int front;
    	int rear;
    }Queue;
    
    int QueueInit(Queue **queue);
    int QueueEmpty(Queue *queue);
    int Push(Queue *queue, int i);
    int Get(Queue *queue);
    int QueueLength(Queue *queue);
    int Pop(Queue *queue);
    int QueueClear(Queue *queue);
    int QueueDestory(Queue **queue);
    
    #endif

*  功能函数：

#include "SequenceQueue.h"
    
    int QueueInit(Queue **queue)
    {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	*queue = (Queue *)malloc(sizeof(Queue));
    	if(*queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	(*queue)->front = 0;
    	(*queue)->rear = 0;
    	
    	return SUCCESS;
    }
    
    int QueueEmpty(Queue *queue)
    {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	if(queue->rear == queue->front)
    	{
    		return TRUE;
    	}
    	else
    	{
    		return FAILURE;
    	}
    }
    
    int Push(Queue *queue, int i)
     {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	if((queue->rear+1)%SIZE == queue->front)
    	{
    		return FAILURE;
    	}
    	
    	queue->data[queue->rear] = i;
    	queue->rear++;
    	
    	return SUCCESS;
     }
     
    int Get(Queue *queue)
    {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	return queue->data[queue->front];
    }
    
    int QueueLength(Queue *queue)
    {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	return (queue->rear-queue->front+SIZE)%SIZE;
    }
    
    int Pop(Queue *queue)
    {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	if(queue->front == queue->rear)
    	{
    		return FAILURE;
    	}
    	
    	int e = queue->data[queue->front];
    	queue->front = (queue->front+1)%SIZE;
    	
    	return e;
    }
    
    int QueueClear(Queue *queue)
    {
    	if(queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	queue->front = queue->rear = 0;
    	
    	return SUCCESS;
    }
    
    int QueueDestory(Queue **queue)
    {
    	if(queue == NULL || *queue == NULL)
    	{
    		return FAILURE;
    	}
    	
    	free(*queue);
    	
    	return SUCCESS;
    }