/in/foo.cc: In function 'int main()':
/in/foo.cc:9:16: warning: 'r' is used uninitialized [-Wuninitialized]
    9 |         while(r!=0)
      |               ~^~~
/in/foo.cc:5:35: note: 'r' was declared here
    5 |         int b1,a1,b2,a2,a,b,aa,bb,r;
      |                                   ^
/in/foo.cc:15:29: warning: 'a' is used uninitialized [-Wuninitialized]
   15 |                 cout<<aa/a<<" "<<bb/b;
      |                             ^~~
/in/foo.cc:5:25: note: 'a' was declared here
    5 |         int b1,a1,b2,a2,a,b,aa,bb,r;
      |                         ^
/in/foo.cc:15:37: warning: 'b' is used uninitialized [-Wuninitialized]
   15 |                 cout<<aa/a<<" "<<bb/b;
      |                                     ^
/in/foo.cc:5:27: note: 'b' was declared here
    5 |         int b1,a1,b2,a2,a,b,aa,bb,r;
      |                           ^