/in/foo.cc: In function 'void P1673::output()':
/in/foo.cc:38:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if (minStep > step[i * MAX_NUMBER + target])
        ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.cc: In function 'int P1673::search()':
/in/foo.cc:68:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (step[neoState] > cost + 1)
         ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:80:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (step[neoState] > cost + 1)
         ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:92:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (step[neoState] > cost + 1)
         ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:104:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (step[neoState] > cost + 1)
         ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:124:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (step[neoState] > cost + 1)
          ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:145:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (step[neoState] > cost + 1)
          ~~~~~~~~~~~~~~~^~~~~~~~~~