Rezumat problemă

Detalii

Problema	DistantaPuncte	Operații I/O	distantapuncte.in/distantapuncte.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#15396423	Utilizator	Anaconda Viper (anaconda_viper)
Fișier	distantapuncte.cpp	Dimensiune	369 B
Data încărcării	12 Aprilie 2019, 14:55	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

distantapuncte.cpp:8:8: error: 'int y1' redeclared as different kind of symbol
 int x1,y1,x2,y2;

        ^
In file included from /usr/include/features.h:374:0,
                 from /usr/include/assert.h:35,
                 from /usr/include/c++/4.8/cassert:43,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:33,
                 from distantapuncte.cpp:1:
/usr/include/i386-linux-gnu/bits/mathcalls.h:241:1: error: previous declaration of 'double y1(double)'
 __MATHCALL (y1,, (_Mdouble_));
 ^
distantapuncte.cpp: In function 'int main()':
distantapuncte.cpp:14:12: error: cannot bind 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
         cin>>x1>>y1>>x2>>y2;

            ^
In file included from /usr/include/c++/4.8/sstream:38:0,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from distantapuncte.cpp:1:
/usr/include/c++/4.8/istream:872:5: error:   initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = double(double)throw ()]'
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
distantapuncte.cpp:16:19: warning: pointer to a function used in arithmetic [-Wpointer-arith]
         int dy=y1-y2;

                   ^
distantapuncte.cpp:16:18: error: invalid conversion from 'double (*)(double)throw ()' to 'int' [-fpermissive]
         int dy=y1-y2;

                  ^
distantapuncte.cpp:12:47: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen("distantapuncte.in","r",stdin);

                                               ^
distantapuncte.cpp:13:49: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen("distantapuncte.out","w",stdout);

                                                 ^

Cum funcționează evaluarea?