Compilare: user.cpp: In function ‘int main()’: user.cpp:12:19: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 2 has type ‘long long unsigned int’ [-Wformat=] scanf("%lld",n); ^ user.cpp:16:26: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 2 has type ‘long long unsigned int’ [-Wformat=] scanf("%lld",a[i]); ^ user.cpp:9:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bete2.in","r",stdin); ^ user.cpp:10:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bete2.out","w",stdout); ^ user.cpp:12:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",n); ^ user.cpp:16:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",a[i]); ^