Compilare: user.cpp: In function ‘int main()’: user.cpp:11:34: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 3 has type ‘double’ [-Wformat=] fprintf(g,"%lld",pow(2,n*n)*n); ^ user.cpp:10:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&n); ^