foo.cc: In function 'int main()':
foo.cc:35:25: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
          if(dis[t][i]!=N&&min(dp[t],dis[t][i])>dp[i]||!dp[t])
             ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。