Compilare: user.cpp: In function ‘int main()’: user.cpp:14:55: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(g,"%ld",((n%p)*((n+1)%p)*((n-1)%p))/3%p); ^ user.cpp:17:80: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(g,"%ld",((((n%p)*((n-1)%p)*((n-2)%p))%p)/3+((n%p)*((n-1)%p)))%p); ^ user.cpp:10:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&p); ^