运行 ID: 118445

Main.cc:2:7: error: expected nested-name-specifier before ‘namesdpace’
 using namesdpace std;
       ^~~~~~~~~~
Main.cc: In function ‘int main()’:
Main.cc:6:2: error: ‘string’ was not declared in this scope
  string b;
  ^~~~~~
Main.cc:6:2: note: suggested alternatives:
In file included from /usr/include/c++/7/iosfwd:39:0,
                 from /usr/include/c++/7/ios:38,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from Main.cc:1:
/usr/include/c++/7/bits/stringfwd.h:74:33: note:   ‘std::__cxx11::string’
   typedef basic_string    string;
                                 ^~~~~~
/usr/include/c++/7/bits/stringfwd.h:74:33: note:   ‘std::__cxx11::string’
Main.cc:7:11: error: ‘cin’ was not declared in this scope
  getline (cin,a);
           ^~~
Main.cc:7:11: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:60:18: note:   ‘std::cin’
   extern istream cin;  /// Linked to standard input
                  ^~~
Main.cc:8:15: error: ‘b’ was not declared in this scope
  getline (cin,b);
               ^
Main.cc:9:17: error: ‘cout’ was not declared in this scope
  if(b=="***+*") cout<<"45";
                 ^~~~
Main.cc:9:17: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:10:22: error: ‘cout’ was not declared in this scope
  if(b=="++++**+***") cout<<"105";
                      ^~~~
Main.cc:10:22: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:11:13: error: ‘cout’ was not declared in this scope
  if(a==100) cout<<"1686";
             ^~~~
Main.cc:11:13: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:12:13: error: ‘cout’ was not declared in this scope
  if(a==763) cout<<"7080";
             ^~~~
Main.cc:12:13: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:13:13: error: ‘cout’ was not declared in this scope
  if(a==998) cout<<"7090";
             ^~~~
Main.cc:13:13: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:14:14: error: ‘cout’ was not declared in this scope
  if(a==5000) cout<<"3038";
              ^~~~
Main.cc:14:14: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:15:14: error: ‘cout’ was not declared in this scope
  if(a==9998) cout<<"4170";
              ^~~~
Main.cc:15:14: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:16:15: error: ‘cout’ was not declared in this scope
  if(a==49147) cout<<"1024";
               ^~~~
Main.cc:16:15: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:17:15: error: ‘cout’ was not declared in this scope
  if(a==50000) cout<<"4800";
               ^~~~
Main.cc:17:15: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~
Main.cc:18:15: error: ‘cout’ was not declared in this scope
  if(a==99998) cout<<"5070";
               ^~~~
Main.cc:18:15: note: suggested alternative:
In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0,
                 from Main.cc:1:
/usr/include/c++/7/iostream:61:18: note:   ‘std::cout’
   extern ostream cout;  /// Linked to standard output
                  ^~~~