/in/foo.cc: In function 'int main()':
/in/foo.cc:21:27: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   21 |                         if(mm==2)
      |                           ^
/in/foo.cc:33:15: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized]
   33 |         cout<<x;
      |               ^
/in/foo.cc:9:13: note: 'x' was declared here
    9 |         int x;
      |             ^