怎么说？这是我没那么狗的几题之一...

#include<iostream>
using namespace std;
int n,a[101];
void gbpx(int left,int right)
{
	if(left==right)
	{
		return;
	}
	int mid=(left+right)>>1;
	cout<<"[";
	for(int i=left;i<=mid;i++)
	{
		cout<<a[i]<<" ";
	}
	cout<<"],[";
	for(int i=mid+1.;i<=right;i++)
	{
		cout<<a[i]<<" ";
	}
	cout<<"]"<<endl;
	gbpx(left,mid);
	gbpx(mid+1,right);
}
int main()
{
	cin>>n;
	for(int i=0;i<n;i++)
	{
		cin>>a[i];
	}
	gbpx(0,n-1);
	return 0;
}