Compilare: user.cpp: In function ‘int main()’: user.cpp:14:15: warning: unused variable ‘j’ [-Wunused-variable] int n, i, j, s, t, d, k, x, y; ^ user.cpp:14:18: warning: unused variable ‘s’ [-Wunused-variable] int n, i, j, s, t, d, k, x, y; ^ user.cpp:14:21: warning: unused variable ‘t’ [-Wunused-variable] int n, i, j, s, t, d, k, x, y; ^ user.cpp:11:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("stergeri.in","r",stdin); ^ 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("stergeri.out","w",stdout); ^ user.cpp:16:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&d,&k); ^ user.cpp:18:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^