Compilare: user.cpp: In function ‘int main()’: user.cpp:7:30: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long int*’ [-Wformat=] fscanf(f,"%d%d",&a,&b); ^ user.cpp:7:30: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long int*’ [-Wformat=] user.cpp:14:27: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(g,"%d\n",a); ^ user.cpp:6:10: warning: unused variable ‘n’ [-Wunused-variable] long n,a,b,aux; ^ user.cpp:7:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&a,&b); ^