Compilare: user.cpp: In function ‘int main()’: user.cpp:21:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=2; i<=n; i++) kfact*=i; ^ user.cpp:9:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expozitie.in", "r", stdin); ^ user.cpp:10:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expozitie.out", "w", stdout); ^ user.cpp:12:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &d, &k); ^