foo.cc: In function 'int main()':
foo.cc:4:15: warning: unused variable 'left' [-Wunused-variable]
    4 |         int n,left,right,max=0,maxi,x;
      |               ^~~~
foo.cc:4:20: warning: unused variable 'right' [-Wunused-variable]
    4 |         int n,left,right,max=0,maxi,x;
      |                    ^~~~~
foo.cc:11:19: warning: 'maxi' may be used uninitialized in this function [-Wmaybe-uninitialized]
   11 |         if(maxi==0||maxi==n-1||n%2==0)
      |            ~~~~~~~^~~~~~~~~~~

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