/in/foo.cc: In function 'int main()':
/in/foo.cc:21:11: warning: 'e' may be used uninitialized [-Wmaybe-uninitialized]
   21 |     cout<<e<<f<<g;
      |           ^
/in/foo.cc:5:16: note: 'e' was declared here
    5 |    int a,b,c,d,e,f,g;
      |                ^
/in/foo.cc:21:14: warning: 'f' may be used uninitialized [-Wmaybe-uninitialized]
   21 |     cout<<e<<f<<g;
      |              ^
/in/foo.cc:5:18: note: 'f' was declared here
    5 |    int a,b,c,d,e,f,g;
      |                  ^
/in/foo.cc:21:17: warning: 'g' may be used uninitialized [-Wmaybe-uninitialized]
   21 |     cout<<e<<f<<g;
      |                 ^
/in/foo.cc:5:20: note: 'g' was declared here
    5 |    int a,b,c,d,e,f,g;
      |                    ^