#include <stdio.h>
// #include <iostream>
#include <stdlib.h>
#include <time.h>

#define LENGTH 10000
//数组长度

#define OUTPUT
//是否输出

// #define RANDOM
//随机数


#define MODE_1
//MODE_1: 迭代
//MODE_2: 递归


int a[LENGTH];
void init()
{
   #ifdef RANDOM
      srand(time(NULL));
   #endif

   for(int i = 0 ; i < LENGTH ; i++)

   #ifdef RANDOM
       a[i]=1+rand()%LENGTH;
   #else
      a[i]=LENGTH-i;
   #endif
}

void swap(int *a,int *b)
{
   int c = *a;
   *a = *b;
   *b = c;
}

#ifdef MODE_1
void bobblesort1A(int a[],int n)
{
   bool sorted = false;
   A:
      sorted = true;
   
      for(int i = 1 ; i < n ; i++)
      {
         if(a[i-1] > a[i])
         {
            swap(&a[i-1],&a[i]);

           sorted=false;
         }
         
      }
      n--;
   if(sorted==false)
      goto A;
}

#elif defined MODE_2
void bobblesort1A(int a[],int n)
{
   bool sorted = false;
      sorted = true;
      
      for(int i = 1 ; i < n ; i++)
      {
         if(a[i-1] > a[i])
         {
            swap(&a[i-1],&a[i]);

           sorted=false;
         }
         
      }
      n--;
   if(n==1)
      return;

   bobblesort1A(a,n);
}
#endif

int main(){
   init();
   clock_t start_t, end_t;
   double total_t;

   #ifdef OUTPUT
   printf("Before\n");
   for(int i=0;i<LENGTH;i++)
      printf("%d \n",a[i]);
   #endif

   start_t = clock();
   bobblesort1A(a,LENGTH);
   end_t = clock();

   #ifdef OUTPUT
   printf("After\n");
   for(int i=0;i<LENGTH;i++)
      printf("%d \n",a[i]);
   #endif

   printf("运算时间: %.4f 秒\n",((double)(end_t - start_t) / CLOCKS_PER_SEC));
   system("pause");

}