/in/foo.cc: In member function 'bign bign::mi()':
/in/foo.cc:37:20: warning: iteration 499 invokes undefined behavior [-Waggressive-loop-optimizations]
   37 |             c.a[i+1]+=c.a[i]/10;
      |             ~~~~~~~^
/in/foo.cc:35:22: note: within this loop
   35 |         for(int i=1;i<=500;i++)
      |                     ~^~~~~
/in/foo.cc: In member function 'bign bign::pf()':
/in/foo.cc:49:20: warning: iteration 499 invokes undefined behavior [-Waggressive-loop-optimizations]
   49 |             c.a[i+1]+=c.a[i]/10;
      |             ~~~~~~~^
/in/foo.cc:47:22: note: within this loop
   47 |         for(int i=1;i<=500;i++)
      |                     ~^~~~~