我的代码100%Accepted
放心，我发的题解很少，不用去看了

#include<iostream>
#include<iomanip>
using namespace std;
int main(){
int x=0,m=0,n=0,a=0,b=0,c=0,d=0,e=0;
cin>>m>>n;
for(x=m;x<=n;x++){
a=0;
b=0;
c=0;
d=0;
e=0;
if(x/10000==0&&x/1000!=0){
a=x/1000-x%1000/100;
b=x%1000/100-x%1000%100/10;
c=x%1000%100/10-x%1000%100%10;
if(a==b&&a==c&&b==c){
cout<<x<<endl;
}
}
else if(x/1000==0&&x/100!=0){
d=x/100-x%100/10;
e=x%100/10-x%100%10;
if(d==e){
cout<<x<<endl;
}
}
}
return 0;
//简单的亿串代码 100% Accepted
}