Rezumat problemă

Detalii

Problema	AriaTriunghi	Operații I/O	ariatriunghi.in/ariatriunghi.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#58550114	Utilizator	Prodan Razvan (razvan_prodan)
Fișier	ariatriunghi.cpp	Dimensiune	323 B
Data încărcării	17 Iunie 2025, 09:01	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

ariatriunghi.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("ariatriunghi.in");

             ^
ariatriunghi.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("ariatriunghi.out");

              ^
ariatriunghi.cpp: In function 'int main()':
ariatriunghi.cpp:11:5: error: reference to 'cin' is ambiguous
     cin>>a>>b>>d>>e>>g>>h;

     ^
ariatriunghi.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("ariatriunghi.in");

          ^
In file included from ariatriunghi.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
ariatriunghi.cpp:13:52: error: call of overloaded 'abs(float)' is ambiguous
     float x=abs(a*e*i+b*f*g+c*d*h-a*f*h-b*d*i-c*e*g)/2

                                                    ^
ariatriunghi.cpp:13:52: note: candidates are:
In file included from /usr/include/c++/4.8/cstdlib:72:0,
                 from /usr/include/c++/4.8/ext/string_conversions.h:41,
                 from /usr/include/c++/4.8/bits/basic_string.h:2815,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from ariatriunghi.cpp:1:
/usr/include/stdlib.h:775:12: note: int abs(int)
 extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
            ^
In file included from /usr/include/c++/4.8/ext/string_conversions.h:41:0,
                 from /usr/include/c++/4.8/bits/basic_string.h:2815,
                 from /usr/include/c++/4.8/string:52,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from ariatriunghi.cpp:1:
/usr/include/c++/4.8/cstdlib:174:3: note: long long int std::abs(long long int)
   abs(long long __x) { return __builtin_llabs (__x); }
   ^
/usr/include/c++/4.8/cstdlib:166:3: note: long int std::abs(long int)
   abs(long __i) { return __builtin_labs(__i); }
   ^
ariatriunghi.cpp:13:11: warning: unused variable 'x' [-Wunused-variable]
     float x=abs(a*e*i+b*f*g+c*d*h-a*f*h-b*d*i-c*e*g)/2

           ^

Cum funcționează evaluarea?