~~玄学符号~~
by qbu666666 @ 2019-08-12 13:18:48
@[zhy123456](/space/show?uid=178294)
```cpp
#include<iostream>
using namespace std;
void work(int n)
{
bool a[30];
int i;
for(i=0;n;i++,n>>=1)a[i]=n&1;
i--;
for(;i>=0;i--)
{
if(a[i])
{
switch(i)
{
case 0:
cout<<"2(0)+";
break;
case 1:
cout<<"2+";
break;
default:
cout<<"2(";
work(i);
cout<<'\b';
cout<<")+";
}
}
}
}
int main()
{
ios::sync_with_stdio(false);
int n;
cin>>n;
work(n);
printf("\b ");
return 0;
}
```
by garbage2 @ 2019-08-12 13:36:07
@[zhy123456](/space/show?uid=178294) man ascii
by garbage2 @ 2019-08-12 13:43:16
光标左移。
by jyi2ya @ 2019-08-12 14:19:25
大家仔细读题，他说的是：
在linux下**退格**是什么？
by jijidawang @ 2020-01-31 12:04:49