Compilare: user.cpp: In function ‘int main()’: user.cpp:26:24: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 3 has type ‘long long int*’ [-Wformat=] fprintf(g,"%lld",&x); ^ user.cpp:7:15: warning: unused variable ‘i’ [-Wunused-variable] long long i,j,m,n,q,r,u1,v1,a,x=1,u=1,y=0,v=0,n1; ^ user.cpp:7:17: warning: unused variable ‘j’ [-Wunused-variable] long long i,j,m,n,q,r,u1,v1,a,x=1,u=1,y=0,v=0,n1; ^ user.cpp:7:19: warning: unused variable ‘m’ [-Wunused-variable] long long i,j,m,n,q,r,u1,v1,a,x=1,u=1,y=0,v=0,n1; ^ user.cpp:10:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld %lld",&a,&n); ^