/in/foo.cc: In function 'int main()':
/in/foo.cc:71:63: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   71 |                                 }else if (abs(j-k)==1 || k==1 && j==i) // || k==i && j==1) // 相邻点
      |                                                          ~~~~~^~~~~~~
/in/foo.cc:67:43: warning: variable 'zx' set but not used [-Wunused-but-set-variable]
   67 |                                 long long zx,fx,ms;
      |                                           ^~
/in/foo.cc:67:46: warning: variable 'fx' set but not used [-Wunused-but-set-variable]
   67 |                                 long long zx,fx,ms;
      |                                              ^~
/in/foo.cc:88:70: warning: 'ms' may be used uninitialized [-Wmaybe-uninitialized]
   88 |                                         f[i][j]=min(f[i][j],f[i+1][1]+ms);
      |                                                             ~~~~~~~~~^~~
/in/foo.cc:67:49: note: 'ms' was declared here
   67 |                                 long long zx,fx,ms;
      |                                                 ^~