foo.cc: In function 'bool compare(int, int, std::__cxx11::string)':
foo.cc:10:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(int i=0;i<tool.size()-(y-x);++i)
                  ~^~~~~~~~~~~~~~~~~~
foo.cc: In function 'int ELFhash(std::__cxx11::string)':
foo.cc:24:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(i<s.size())
           ~^~~~~~~~~
foo.cc: In function 'bool search(int, std::__cxx11::string)':
foo.cc:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(i=0;i<s.size();++i)
              ~^~~~~~~~~
foo.cc:45:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(j=1;j<s.size();++j)
              ~^~~~~~~~~
foo.cc:49:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      while(j<s.size())
            ~^~~~~~~~~
foo.cc:51:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(i<s.size()&&(s[i]=='C'||s[i]=='O'||s[i]=='W')) i++;
               ~^~~~~~~~~
foo.cc:53:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(j<s.size()&&s[j]!='C'&&s[j]!='O'&&s[j]!='W') j++;
               ~^~~~~~~~~
foo.cc:60:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for(int j=0;j<s.size();++j)
                  ~^~~~~~~~~

自豪的采用jd5进行评测(github.com/masnn/jd5)

{"receive":"2020-02-16T03:03:30.721Z","handle":"2020-02-16T03:03:30.721Z","cache_start":"2020-02-16T03:03:30.721Z","read_cases":"2020-02-16T03:03:30.882Z","judge":"2020-02-16T03:03:30.883Z","done":"2020-02-16T03:03:32.006Z"}