Eroare de compilare: user.cpp:7:8: error: expected constructor, destructor, or type conversion before ‘(’ token freopen("deque.in", "r", stdin); ^ user.cpp:8:8: error: expected constructor, destructor, or type conversion before ‘(’ token freopen("deque.out", "w", stdout); ^ user.cpp: In function ‘int main()’: user.cpp:13:22: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘int (*)[5000001]’ [-Wformat=] scanf("%d",&v); ^ user.cpp:11:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld",&n,&k); ^ user.cpp:13:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v); ^