Compilare: user.cpp: In function ‘int main()’: user.cpp:12:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("patrate6.in", "r", stdin); ^ user.cpp:13:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("patrate6.out", "w", stdout); ^ user.cpp:14:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:16:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:24:32: warning: array subscript is above array bounds [-Warray-bounds] printf("%lld", Ap[NMAX]); ^ user.cpp:26:31: warning: array subscript is above array bounds [-Warray-bounds] printf("%lld", Ap[NMAX] + 1); ^ user.cpp:20:31: warning: iteration 1000006u invokes undefined behavior [-Waggressive-loop-optimizations] Ap[i + 1] += Ap[i] / 2; ^ user.cpp:19:5: note: containing loop for(int i = 0; i <= NMAX; ++i){ ^