/in/foo.cc:4:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc:10:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc:15:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc:20:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc:878:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc:1766:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc:1771:13: warning: #pragma system_header ignored outside include file
 #pragma GCC system_header
             ^~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:2024:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(long long i=1;i<=n;i++)
     ^~~
/in/foo.cc:2026:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  kru();
  ^~~