foo.cc: In function 'int main()':
foo.cc:11:50: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   11 |         for(int i = 2;i < n;i++)cnt+=(a[i]>a[i-1]&&a[i]>a[i+1]||a[i]<a[i-1]&&a[i]<a[i+1]);
      |                                       ~~~~~~~~~~~^~~~~~~~~~~~~

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