0_0_24301099_12412.cpp: In function 'int main()':
0_0_24301099_12412.cpp:6:1: error: 'cin' was not declared in this scope
cin>>m>>n;
^
0_0_24301099_12412.cpp:6:1: note: suggested alternative:
In file included from 0_0_24301099_12412.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_24301099_12412.cpp:8:20: error: 'pow' was not declared in this scope
sum=sum+pow(-1,n+1)*1/i;
^
0_0_24301099_12412.cpp:9:1: error: 'cout' was not declared in this scope
cout<<sum;
^
0_0_24301099_12412.cpp:9:1: note: suggested alternative:
In file included from 0_0_24301099_12412.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
^
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