Compilare: user.c: In function ‘main’: user.c:26:5: warning: format ‘%ld’ expects argument of type ‘long int *’, but argument 3 has type ‘long long int *’ [-Wformat=] fscanf(pf,"%ld",&k); ^ user.c:28:5: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(pg,"%ld ",ciur(k)*ciur(k)); ^ user.c: In function ‘ciur’: user.c:16:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:26:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pf,"%ld",&k); ^