Main.cc:2:7: error: expected nested-name-specifier before ‘nazmespace’
using nazmespace std;
^~~~~~~~~~
Main.cc: In function ‘int main()’:
Main.cc:9:6: error: ‘cin’ was not declared in this scope
{cin >> n;}
^~~
Main.cc:9:6: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/7/iostream:60:18: note: ‘std::cin’
extern istream cin; /// Linked to standard input
^~~
Main.cc:12:25: error: expected primary-expression before ‘,’ token
{ pi += 4.0 * pow(1-, i) / (2 * i + 1);}
^
Main.cc:12:19: error: ‘pow’ was not declared in this scope
{ pi += 4.0 * pow(1-, i) / (2 * i + 1);}
^~~
Main.cc:13:5: error: ‘cout’ was not declared in this scope
cout << pi << endl;
^~~~
Main.cc:13:5: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/7/iostream:61:18: note: ‘std::cout’
extern ostream cout; /// Linked to standard output
^~~~
Main.cc:13:19: error: ‘endl’ was not declared in this scope
cout << pi << endl;
^~~~
Main.cc:13:19: note: suggested alternative:
In file included from /usr/include/c++/7/iostream:39:0,
from Main.cc:1:
/usr/include/c++/7/ostream:590:5: note: ‘std::endl’
endl(basic_ostream<_CharT, _Traits>& __os)
^~~~