#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<time.h>
#include<windows.h>

void procducer();
void consumer();
int buffer[10];//緩衝區
int count = 0;//生產的貨物數
int length = 10;//緩衝區大小 


int main() {
  memset(buffer, 0, sizeof(buffer));//初始化緩衝區為空 
    while(1) {
      Sleep(500
 
);
      srand(time(0));
    int a = rand() % (21) + 10;//產生10到30的隨機數 

    if (a % 2) consumer();//隨機數為奇數執行 
    else procducer();//為偶數執行 
    //printf("%d\n", a); 
    } 
}

void consumer() {
  if (count > 0) {
    for (int i = 0; i < length; i++) {
      if (buffer[i] == 1) {
        buffer[i] = 0;
        count--;
        printf
 
("\n消費者消費一個產品,還剩%d個產品\n", count);
        break;
      }
    }
  }else {
    printf("\n緩衝區產品為空\n");
  } 
}

void procducer() {
  int i;
  int judge = 0;
  for (i = 0; i < length; i++) {
    if (buffer[i] == 0) {
      judge = 1;
      break;
    }
  }
  if (judge == 0) printf("\n緩衝區已放滿10個產品\n");
  if (judge == 1
 
) {
    buffer[i] = 1;
    count++;
    printf("\n生產者生產一個產品,還剩%d個產品\n", count);
  }
}