Accepted
/in/foo.cc: In function 'void div(int)':
/in/foo.cc:14:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<a.size();i++){
~^~~~~~~~~
/in/foo.cc:21:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<r.size();i++)
~^~~~~~~~~
