/in/foo.cc: In function 'int main()':
/in/foo.cc:89:71: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   89 |                                         }else if (abs(j-k)==1 || k==1 && j==i || k==i && j==1) // 相邻点
      |                                                                  ~~~~~^~~~~~~
/in/foo.cc:89:87: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   89 |                                         }else if (abs(j-k)==1 || k==1 && j==i || k==i && j==1) // 相邻点
      |                                                                                  ~~~~~^~~~~~~