循环队列 C语言实现
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2022-04-09 21:08:21
"Queue.h" "main.c" ......
"Queue.h"
#include "Queue.h" #include <stdio.h> #include <stdlib.h> status Queue_init(SqQueue *Q) { Q->data = (char*)malloc(sizeof(char)*MAXSIZE); Q->front = 0; Q->rear = 0; return OK; } status Queue_In(SqQueue *Q,char e) //进入队列 { if((Q->rear +1)%MAXSIZE ==Q->front) { printf("队列已满"); return ERROR; } Q->data[Q->rear] = e; Q->rear =(Q->rear+1)%MAXSIZE; return OK; } char Queue_Out(SqQueue *Q) { char e; if(Q->front == Q->rear) { printf("队列为空"); return ERROR; } e = Q->data[Q->front]; Q->front = (Q->front+1)%MAXSIZE; return e; } void Print_Queue(SqQueue Q) { int i=Q.front; printf("队列:\n"); while(i!= Q.rear) { printf("%c",Q.data[i]); i = (i+1)%MAXSIZE; } printf("\n"); } int Queue_length(SqQueue Q) { return (Q.rear-Q.front+MAXSIZE)%MAXSIZE; }
"main.c"
#include <stdio.h> #include <stdlib.h> #include "Queue.h" #include <string.h> int main() { SqQueue Q; char c; char rec[MAXSIZE] ; int i; Queue_init(&Q); printf("请输入一个字符串:\n"); gets(rec); for(i=0;rec[i]!= '\0';i++) { Queue_In(&Q,rec[i]); } Print_Queue(Q); printf("队长为:%d\n",Queue_length(Q)); printf("!加入游戏\n"); Queue_In(&Q,'!'); printf("%c退出了游戏\n",Queue_Out(&Q)); Print_Queue(Q); return 0; }
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