Compilare: user.cpp: In function ‘long long int Pos(int)’: user.cpp:33:6: warning: unused variable ‘P’ [-Wunused-variable] int P=1,K=2,R,L; ^ user.cpp: In function ‘int main()’: user.cpp:58:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(OUT,"%d",Pos(N)); ^ user.cpp:56:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&N); ^