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2231 : 분해합 [C++] 

#include <iostream>

using namespace std;

int main()
{
 int Target;
 cin >> Target;

 for (int i = 1; i <= Target; i++)
 {
  if (i == Target)
  {
   Target = 0;
   break;
  }

  int Sum = 0;
  Sum += i;
  int Temp = i;
  while (Temp > 0)
  {
   Sum += Temp % 10;
   Temp /= 10;
  }

  if (Sum == Target)
  {
   Target = i;
   break;
  }
 }

 cout << Target;
}
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