View Compilation Error

0_0_36450542_12536.cpp: In function 'int main()':
0_0_36450542_12536.cpp:3:3: error: 'll' was not declared in this scope
   ll t,n,k;
   ^
0_0_36450542_12536.cpp:4:8: error: 'cin' was not declared in this scope
   for (cin>>t;t--;) {
        ^
0_0_36450542_12536.cpp:4:8: note: suggested alternative:
In file included from 0_0_36450542_12536.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_36450542_12536.cpp:4:13: error: 't' was not declared in this scope
   for (cin>>t;t--;) {
             ^
0_0_36450542_12536.cpp:5:10: error: 'n' was not declared in this scope
     cin>>n>>k;
          ^
0_0_36450542_12536.cpp:5:13: error: 'k' was not declared in this scope
     cin>>n>>k;
             ^