/in/foo.cc: In function 'int main()':
/in/foo.cc:19:2: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
  else
  ^~~~
/in/foo.cc:22:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else'
   if(n==2)
   ^~