0_0_14802103_17421.cpp:3:7: error: expected nested-name-specifier before 'namepsace'
using namepsace std;
^
0_0_14802103_17421.cpp: In function 'int main()':
0_0_14802103_17421.cpp:6:15: error: 'cin' was not declared in this scope
while(cin>>x1>>y1>>x2>>y2)
^
0_0_14802103_17421.cpp:6:15: note: suggested alternative:
In file included from 0_0_14802103_17421.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note: 'std::cin'
extern istream cin; /// Linked to standard input
^
0_0_14802103_17421.cpp:7:18: error: 'cout' was not declared in this scope
cout<<sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1))<<endl;
^
0_0_14802103_17421.cpp:7:18: note: suggested alternative:
In file included from 0_0_14802103_17421.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note: 'std::cout'
extern ostream cout; /// Linked to standard output
^
0_0_14802103_17421.cpp:7:63: error: 'endl' was not declared in this scope
cout<<sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1))<<endl;
^
0_0_14802103_17421.cpp:7:63: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_14802103_17421.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note: 'std::endl'
endl(basic_ostream<_CharT, _Traits>& __os)
^
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