Compilare: user.c: In function ‘ciur’: user.c:10: warning: implicit declaration of function ‘malloc’ user.c:10: warning: incompatible implicit declaration of built-in function ‘malloc’ user.c:13: warning: assignment makes integer from pointer without a cast user.c:25: warning: implicit declaration of function ‘free’ user.c:25: warning: incompatible implicit declaration of built-in function ‘free’ user.c: In function ‘main’: user.c:36: warning: format ‘%d’ expects type ‘int *’, but argument 3 has type ‘long int *’ user.c:36: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result