/in/foo.cc: In function 'int P1673::search()':
/in/foo.cc:64:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (step[neoState] > cost + 1)
          ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:72:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (minStep > step[neoState]) {
           ~~~~~~~~^~~~~~~~~~~~~~~~
/in/foo.cc:82:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (step[neoState] > cost + 1)
          ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:90:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (minStep > step[neoState]) {
           ~~~~~~~~^~~~~~~~~~~~~~~~
/in/foo.cc:100:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (step[neoState] > cost + 1)
          ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:108:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (minStep > step[neoState]) {
           ~~~~~~~~^~~~~~~~~~~~~~~~
/in/foo.cc:118:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if (step[neoState] > cost + 1)
          ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:126:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (minStep > step[neoState]) {
           ~~~~~~~~^~~~~~~~~~~~~~~~
/in/foo.cc:144:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (step[neoState] > cost + 1)
           ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:152:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
        if (minStep > step[neoState]) {
            ~~~~~~~~^~~~~~~~~~~~~~~~
/in/foo.cc:171:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       if (step[neoState] > cost + 1)
           ~~~~~~~~~~~~~~~^~~~~~~~~~
/in/foo.cc:180:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
        if (minStep > step[neoState]) {
            ~~~~~~~~^~~~~~~~~~~~~~~~