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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. struct ps
  5. {
  6.     long long tu, mau;
  7. };
  8.  
  9. void rutgon(ps &x)
  10. {
  11.     if(x.mau<0)
  12.     {
  13.         x.mau = -x.mau;
  14.         x.tu = -x.tu;
  15.     }
  16.     long long tam = __gcd(x.tu, x.mau);
  17.     x.tu/=tam, x.mau/=tam;
  18. }
  19.  
  20. ps cong(ps x, ps y)
  21. {
  22.     ps t;
  23.     t.mau = x.mau*y.mau;
  24.     t.tu = x.tu*y.mau + x.mau*y.tu;
  25.     rutgon(t);
  26.     return t;
  27. }
  28.  
  29. int main()
  30. {
  31.     ps x, y, t;
  32.     cin >> x.tu >> x.mau;
  33.     cin >> y.tu >> y.mau;
  34.     rutgon(x);
  35.     rutgon(y);
  36.     t = cong(x, y);
  37.     rutgon(t);
  38.     cout << t.tu << ' ' << t.mau;
  39. }
  40.  
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/eneWgo
language:
C++14 (clang 8.0)
created:
30 days ago
visibility:
public

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