/in/foo.cc: In function 'void search(int, int)':
/in/foo.cc:17:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(c.size()>10||j>=s[i].size()) return;
                     ~^~~~~~~~~~~~~
/in/foo.cc: At global scope:
/in/foo.cc:32:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^