/in/foo.cc: In function 'int main()':
/in/foo.cc:32:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=10000;i<=v.size();i++)
              ~^~~~~~~~~~
/in/foo.cc:9:15: warning: unused variable 'k' [-Wunused-variable]
  int a[10000],k=0;
               ^