Compilare: user.cpp: In function ‘int main()’: user.cpp:49:26: warning: too many arguments for format [-Wformat-extra-args] scanf("%d\n", &n , &k); ^ user.cpp:52:30: warning: too many arguments for format [-Wformat-extra-args] scanf("%d\n", &x , &y); ^ user.cpp:47:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("subsecvente2.in","r",stdin); ^ user.cpp:48:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("subsecvente2.out","w",stdout); ^ user.cpp:49:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n , &k); ^ user.cpp:52:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &x , &y); ^