Compilare: user.cpp: In function ‘int main()’: user.cpp:29:38: warning: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 4 has type ‘int’ [-Wformat=] fprintf(g, "%llud %llud", xsol, ysol); ^ user.cpp:10:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%llud %llud", &x, &y); ^