如題   為什麼我送出去的C++程式碼這麼大?

別人的好像都幾百Kb

為什麼我的會到2.3mb?

 這是我a006的程式碼...

#include <iostream>
#include <cmath>
 
using namespace std;

int main()
{
    int a , b , c ,d;
    double x1 , x2 ;
         
          cin>> a >> b >> c;
          d = (b * b) - (4 * a * c);
          if ( d == 0 )
          {
              x1 = (-b) /(2*a);
              if (x1 == 0) 
              {
                  x1 == 0; 
              }
          cout << "Two same roots x=" << x1 <<endl;
          }
          else if  (d > 0)
          {
               x1 = (-b + sqrt(d))/(2*a);
               x2 = (-b - sqrt(d))/(2*a);
               cout << "Two different roots x1=" <<x1 << " , x2=" << x2<< endl ;
          }
          else
          {
               cout << "No real root" <<endl ;
          }
    system("pause");
}