求助助助助助助助助助助助助助助助助助助助！
by DeltaCR @ 2023-05-09 21:29:05
@[DeltaCR](/user/552387) 不就是暴力吗？
```cpp
#include<bits/stdc++.h>
using namespace std;
short n;long long l;
int main(){
cin>>n;
if(n<10||n>30){
cout<<0;
return 0;
}
for(short a=1;a<=3;a++){
for(short b=1;b<=3;b++){
for(short c=1;c<=3;c++){
for(short d=1;d<=3;d++){
for(short e=1;e<=3;e++){
for(short f=1;f<=3;f++){
for(short g=1;g<=3;g++){
for(short h=1;h<=3;h++){
for(short i=1;i<=3;i++){
for(short j=1;j<=3;j++){
if(a+b+c+d+e+f+g+h+i+j==n){
l++;
}
}
}
}
}
}
}
}
}
}
}
cout<<l<<endl;
for(short a=1;a<=3;a++){
for(short b=1;b<=3;b++){
for(short c=1;c<=3;c++){
for(short d=1;d<=3;d++){
for(short e=1;e<=3;e++){
for(short f=1;f<=3;f++){
for(short g=1;g<=3;g++){
for(short h=1;h<=3;h++){
for(short i=1;i<=3;i++){
for(short j=1;j<=3;j++){
if(a+b+c+d+e+f+g+h+i+j==n){
cout<<a<<' '<<b<<' '<<c<<' '<<d<<' '<<e<<' '<<f<<' '<<g<<' '<<h<<' '<<i<<' '<<j<<endl;
}
}
}
}
}
}
}
}
}
}
}
return 0;
}
```
最大用时13ms
by _buzhidao_ @ 2023-05-09 21:31:30
@[DeltaCR](/user/552387) ~~我们要合理地运用**复制粘贴**~~
by _buzhidao_ @ 2023-05-09 21:32:40
@[_buzhidao_](/user/917775) ~~你是真肝~~，之前我也用这个方法做过，但是你知道我这样有什么问题吗
by DeltaCR @ 2023-05-11 17:23:37
@[DeltaCR](/user/552387) 理论上科以，~~但我不会（逃）~~
可以参考一下[这篇](https://www.luogu.com.cn/blog/hak20050209/solution-p2089)题解
by Allen_yang @ 2023-05-11 17:33:09
或者测一测样例
by Allen_yang @ 2023-05-11 17:35:17