就像这样，美轮美奂：
```
#include<iostream>
using namespace std;
int main()
{
int a,b,c,d,e,f,g,h,i,j,ji,sum=0;
cin>>ji;
for (a=1;a<=3;a++)
for (b=1;b<=3;b++)
for (c=1;c<=3;c++)
for (d=1;d<=3;d++)
for (e=1;e<=3;e++)
for (f=1;f<=3;f++)
for (g=1;g<=3;g++)
for(h=1;h<=3;h++)
for (i=1;i<=3;i++)
for (j=1;j<=3;j++)
if (a+b+c+d+e+f+g+h+i+j==ji)
sum++;
cout<<sum<<endl;
for (a=1;a<=3;a++)
for (b=1;b<=3;b++)
for (c=1;c<=3;c++)
for (d=1;d<=3;d++)
for (e=1;e<=3;e++)
for (f=1;f<=3;f++)
for (g=1;g<=3;g++)
for(h=1;h<=3;h++)
for (i=1;i<=3;i++)
for (j=1;j<=3;j++)
if (a+b+c+d+e+f+g+h+i+j==ji)
{
cout<<a<<" ";
cout<<b<<" ";
cout<<c<<" ";
cout<<d<<" ";
cout<<e<<" ";
cout<<f<<" ";
cout<<g<<" ";
cout<<h<<" ";
cout<<i<<" ";
cout<<j<<endl;
}
}
```
by Register @ 2018-07-22 23:22:36
NB
by 红色OI再临 @ 2018-07-26 09:02:32
陈独秀
by 红色OI再临 @ 2018-07-26 09:02:47
@[songhaoran](/space/show?uid=80679) 大佬，拜服
by Andrew82 @ 2018-07-28 10:09:42
入门难度是不是你们搞的
by lion0514 @ 2018-08-12 12:26:01
正常情况下，这题是用搜索的
by lion0514 @ 2018-08-12 12:26:22