Compilare: user.cpp: In function ‘void Calcul(long long unsigned int&, int, int)’: user.cpp:9:7: warning: unused variable ‘y’ [-Wunused-variable] { int y=1;int o;long long s=1; ^ user.cpp: In function ‘int main()’: user.cpp:53:24: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long unsigned int’ [-Wformat=] fprintf(g,"%d\n",s); ^ user.cpp:34:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:37:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&x,&y); ^