View Compilation Error

0_0_29028734_12755.cpp: In function 'int main()':
0_0_29028734_12755.cpp:8:2: error: 'cin' was not declared in this scope
  cin>>t;
  ^
0_0_29028734_12755.cpp:21:12: error: 'cout' was not declared in this scope
   if(low<0)cout<<-1<<endl;
            ^
0_0_29028734_12755.cpp:21:22: error: 'endl' was not declared in this scope
   if(low<0)cout<<-1<<endl;
                      ^
0_0_29028734_12755.cpp:48:3: error: 'cout' was not declared in this scope
   cout<<high<<endl;
   ^
0_0_29028734_12755.cpp:48:15: error: 'endl' was not declared in this scope
   cout<<high<<endl;
               ^