@[mooktian](/user/890321) [仔细看](https://www.luogu.com.cn/blog/NMY-LQY/solution-p1149)
by _Haoomff_ @ 2023-02-24 20:06:13
@[mooktian](/user/890321)
其实24根以内的火柴棒等式最大就能到$1112$，像这样
```cpp
#include<iostream>
#include<cstring>
#include<algorithm>
using namespace std;
int a[12]={6,2,5,5,4,5,6,3,7,6};
int qwerty(int r){
int i,sum=0;
for(i=r;i!=0;i/=10){
sum+=a[i%10];
}
if(r==0)sum+=a[0];
return sum;
}
int main(){
int n,k,asum=0;cin>>n;
for(int i=0;i<1112;i++){
for(int j=0;j<1112;j++){
k=i+j;
if(qwerty(i)+qwerty(j)+qwerty(k)+4==n){
asum+=1;
}
}
}
cout<<asum;
}
```
by AstaSunch_ @ 2023-02-24 20:12:10