#include<iostream>
#include<string>
#include<vector>
#include<iomanip>
#include<algorithm>
using namespace std;
inline int str_to_min(int a)
{
string tmp = to_string(a);
while (tmp.size() < 4)
{
tmp = tmp + "0";
}
sort(tmp.begin(), tmp.end());
unsigned ret = stoi(tmp);
return ret;
}
inline int str_to_max(int a)
{
string tmp = to_string(a);
while (tmp.size() <4)
{
tmp = tmp + "0";
}
sort(tmp.begin(), tmp.end(), [](char chr1, char chr2) {return chr1>chr2; });
unsigned ret = stoi(tmp);
return ret;
}
int main()
{
int n;
cin >> n;
int max_tmp = str_to_max(n);
int min_tmp = str_to_min(n);
int r = max_tmp -min_tmp ;
if (r == 0)
{
cout << n << " - " << n << " = 0000";
}
else
{
cout.setf(ios::right);
cout.fill('0');
while (r!=6174)
{
cout <<setw(4)<< max_tmp << " - " << setw(4)<< min_tmp <<" = "<< setw(4)<< r<<endl;
n = r;
max_tmp = str_to_max(n);
min_tmp = str_to_min(n);
r = max_tmp - min_tmp;
if (r==0)
{
cout << setw(4) << max_tmp << " - " << setw(4) << min_tmp << " = " << "0000" ;
return 0;
}
}
cout << setw(4)<< max_tmp << " - " << setw(4)<< min_tmp << " = " << setw(4)<< r;
}
cout << endl;
system("pause");
return 0;
}
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