运行 ID: 41083

Main.cc:2:1: error: ‘usingnamespace’ does not name a type
 usingnamespace std;
 ^~~~~~~~~~~~~~
Main.cc: In function ‘int main()’:
Main.cc:6:5: error: ‘cin’ was not declared in this scope
     cin>>n;
     ^~~
Main.cc:6:5: 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:7:23: error: expected primary-expression before ‘;’ token
     for(int i=10;i<=n;;i++){
                       ^
Main.cc:7:23: error: expected ‘)’ before ‘;’ token
Main.cc:7:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
     for(int i=10;i<=n;;i++){
     ^~~
Main.cc:7:24: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
     for(int i=10;i<=n;;i++){
                        ^
Main.cc:7:24: error: ‘i’ was not declared in this scope
Main.cc:22:2: error: ‘cout’ was not declared in this scope
  cout<