/in/foo.cc: In function 'int main()':
/in/foo.cc:27:14: warning: overflow in implicit constant conversion [-Woverflow]
     int rmin=2333333333333,res;
              ^~~~~~~~~~~~~
/in/foo.cc:31:13: warning: unused variable 'tmp' [-Wunused-variable]
         int tmp=k;
             ^~~
/in/foo.cc:39:20: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
     int l=res,r=tot-res;
                 ~~~^~~~