Eroare de compilare: user.c:3: error: expected ‘;’, ‘,’ or ‘)’ before ‘&’ token user.c: In function ‘calcul’: user.c:27: warning: implicit declaration of function ‘produs’ user.c: In function ‘main’: user.c:40: warning: format ‘%d’ expects type ‘int *’, but argument 3 has type ‘long int *’ user.c:70: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long int’ user.c:40: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:43: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result