foo.c: In function 'Maxprofit':
foo.c:5:13: warning: unused variable 'Max' [-Wunused-variable]
    5 |         int Max[N];
      |             ^~~
foo.c: In function 'main':
foo.c:26:21: warning: unused variable 'max' [-Wunused-variable]
   26 |                 int max = Maxprofit(a, n);
      |                     ^~~

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