Compilare: user.cpp: In function ‘long long int solve(long long int)’: user.cpp:6:15: warning: unused variable ‘p2’ [-Wunused-variable] long long p2=1,rid=0; ^ user.cpp:6:20: warning: unused variable ‘rid’ [-Wunused-variable] long long p2=1,rid=0; ^ user.cpp: In function ‘int main()’: user.cpp:21:27: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d%d",&n,&b); ^ user.cpp:21:27: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] user.cpp:18:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zero2.in","r",stdin); ^ user.cpp:19:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zero2.out","w",stdout); ^ user.cpp:21:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&b); ^