/in/foo.cc: In function 'int main()':
/in/foo.cc:11:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   11 |                         if((i<=n&&j<n-i+1||j>n+i-1)||(i>n&&j<i-n+1||j>2*n-i+n-1))
      |                             ~~~~^~~~~~~~~
/in/foo.cc:11:58: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   11 |                         if((i<=n&&j<n-i+1||j>n+i-1)||(i>n&&j<i-n+1||j>2*n-i+n-1))
      |                                                       ~~~^~~~~~~~~