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ismaeil

B. Arithmetic Exercise 2

Aug 5th, 2022
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  1.  ll x, y, k ;
  2.  
  3.     cin >> x >> y >> k ;
  4.  
  5.     cout<<x / y <<".";
  6.  
  7.     string s ;
  8.  
  9.     ll rem = x % y ;
  10.  
  11.     for (int i = 1 ; i<= k + 1 ; i++)
  12.     {
  13.         rem *= 10 ;
  14.  
  15.         int c = rem / y ;
  16.  
  17.         s += (char)(c + '0') ;
  18.  
  19.         rem %= y ;
  20.     }
  21.  
  22.     if (s.back() >= '5')
  23.         s[s.size() - 2]++;
  24.  
  25.     s.pop_back() ;
  26.  
  27.     cout<<s<<"\n";
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