由于调试行，函数正在工作

我正在查找谐波数，只要输入了我用来调试程序的线路，函数就会循环，直到找到正确的谐波数cout线在最后。如果我删除cout的任何部分，程序就会再次失败。我完全不知道国家电视台是如何影响这个节目的。没有它，所有东西都会存储零。

struct fraction
{
  long nume, denom;
};
void add (fraction x, fraction y, fraction& result)
{
  long Numerator, Denominator, GCD, Higher, Lower;
  Numerator = (x.nume * y.denom + x.denom * y.nume);                                                                                       
  Denominator = (x.denom * y.denom);  
if (Numerator > Denominator)
  {
    Lower = Denominator;
    Higher = Numerator;
  }
else if (Numerator < Denominator)
  {
    Higher = Denominator;
    Lower = Numerator;
  }
while (Higher % Lower > 0)
  {                                                                              
    GCD = Higher % Lower;                                                                                                  
    Higher = Lower;                                                                                                 
    Lower = GCD;
  }
result.nume = Numerator/GCD;
result.denom = Denominator/GCD;
cout << "d " << result.nume << "   " << GCD << "   " << Denominator/GCD << " " << result.denom << endl;

}