foo.cc: In function 'int main()':
foo.cc:7:15: error: expected ';' before 'for'
    7 |  cin >> h >> n
      |               ^
      |               ;
    8 |  for (int i = 0; i < n; i++)
      |  ~~~           
foo.cc:8:18: error: 'i' was not declared in this scope
    8 |  for (int i = 0; i < n; i++)
      |                  ^
foo.cc:14:20: error: 's' was not declared in this scope
   14 |  printf("%.2f\n", &s);
      |                    ^

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