c++实现的一些排序算法

最近用c++简单实现了一些排序算法，记下来，以便以后用到

//合并排序全代码

void merge (int a[], int low, int high)
{  
   int i, j, k = -1; 

for (i=low, j=(low+high)/2+1; i<=(low+high)/2||j<=high;   )
{  
   if ( i>(low+high)/2 )  
   {
    b[++k]=a[j++]; 
   }
      else if (j>high) 
   {
    b[++k]=a[i++]; 
   }
      else if (a[i]>=a[j]) 
   {
    b[++k]=a[j++]; 
   }
      else   b[++k]=a[i++];
} 
k=0; 
for(i=low; i<=high; i++) 
{
   a[i]=b[k++]; 
}
} 


void mergeSort(int a[], int low, int high)
{ 
if ( high > low)
{
   mergeSort(a, low, (low+high)/2);
   mergeSort(a, 1+(low+high)/2, high);
   merge(a, low, high);
}
}
//直接插入排序
void insertSort(double a[],int n)
{
  int i,j;
  double k;
  for(i=1;i<n;i++)
  {
    if(a[i]<a[i-1])
	{
		k=a[i];
		for(j=i-1;a[j]>k && j>=0;j--)
			a[j+1]=a[j];
		a[j+1]=k;
	}
  }
}
//折半插入排序
void binsertSort(double a[],int n)
{
   int i,j,m,low,high;
   double k;
   for(i=1;i<n;i++)
   {  
	   k=a[i];
	   low=0;
	   high=i-1;
    
	  while(low<=high)
	  {
	     m=(low+high)/2;
			 if(k<a[m])
				 high=m-1;
			 else low=m+1;

	  }
	  for(j=i-1;j>=high && j>=0;j--)
			a[j+1]=a[j];
	        a[high+1]=k;
	      
   }

 }
//快速排序
//分割函数
int Partition(double  a[],int n,int low,int high)
{
  double k=a[low];
  while(low<high)
  {
    while(low<high && a[high]>=k)--high;
	a[low]=a[high];
	while(low<high && a[low]<=k)++low;
	a[high]=a[low];
  }
  a[low]=k;
  return low;
}
void quitSort(double a[],int n,int low,int high)
{
	int key;
  if(low<high)
  {
    key=Partition(a,n,low,high);
	quitSort(a,n,low,key-1);
    quitSort(a,n,key+1,high);
  }
}
//堆排序
//筛选算法
void sift(double a[],int k,int m)
{
    int i=k,j=i*2;
	while(j<=m-1)
	{
	   if(j<m && a[j]<a[j+1])j++;
	   if(a[i]<a[j])
	   {
	      double temp=a[i];
		  a[i]=a[j];
		  a[j]=temp;

		  i=j;
		  j=i*2;
	   }
	   else break;
	}
}
void heapSort(double a[],int n)
{
   int k=(n-1)/2;
   for(int i=k;i>=1;i--)
	   sift(a,i,n-1);
   for(int j=n-1;j>1;j--)
   {
      double temp=a[1];
	  a[1]=a[j];
	  a[j]=temp;
	  sift(a,1,j-1);
   }
}
int main()
{
	int i;
	double a[9]={23,56,12,3,58,62,18,36,18};
	double b[9]={23,56,12,3,58,62,18,36,18};
	double c[9]={23,56,12,3,58,62,18,36,18};
	int d[9]={23,56,12,3,58,62,18,36,18};
	double e[10]={0,23,56,12,3,58,62,18,36,18};
	cout<<"直接插入排序";
	insertSort(a,9);
	for(i=0;i<9;i++)
		cout<<a[i]<<"  ";
	cout<<endl;
	cout<<"折半插入排序";
   binsertSort(b,9);
	for(i=0;i<9;i++)
		cout<<b[i]<<"  ";
	cout<<endl;
	cout<<"合并排序";
	mergeSort(d,0,8);
	for(i=0;i<9;i++)
		cout<<d[i]<<"  ";
	cout<<endl;
	cout<<"快速排序";
	quitSort(c,9,0,8);
	for(i=0;i<9;i++)
		cout<<c[i]<<"  ";
	cout<<endl;
	cout<<"堆排序";
	heapSort(e,10);
	for(i=0;i<10;i++)
		cout<<e[i]<<"  ";

	return 0;
}

结果[img]

[/img]

 public static void sort(int[] array,int size)       {           int i,j,temp;           for(i=0;i<size;i++)           {               for(j=0;j<size-i-1;j++)               {                   if(array[j]>array[j+1])                   {                       temp = array[j];                       array[j] = array[j+1];                       array[j+1] = temp;                   }                   System.out.println(Arrays.toString(array));                                  }               System.out.println("第"+i+"次----------------------");                          }       }