foo.c:1:1: warning: data definition has no type or storage class
    1 | p=import()
      | ^
foo.c:1:1: warning: type defaults to 'int' in declaration of 'p' [-Wimplicit-int]
foo.c:1:3: warning: implicit declaration of function 'import' [-Wimplicit-function-declaration]
    1 | p=import()
      |   ^~~~~~
foo.c:1:3: error: initializer element is not constant
foo.c:2:1: error: expected ',' or ';' before 'q'
    2 | q=p/2*0.96
      | ^

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