foo.cc: In function 'int main()':
foo.cc:29:100: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   29 |                 if(arr[num]!=arr[num+1] && arr[n-1]%arr[num]==0 && num < n-2 && arr[n-1]&arr[num+1]!=0)
      |                                                                                          ~~~~~~~~~~^~~
foo.cc:34:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   34 |                 if(num=n-2)
      |                    ~~~^~~~

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