Compilare: user.cpp: In function ‘int main()’: user.cpp:13:24: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[5]’ [-Wformat=] while(scanf("%s",&s)!=EOF){ ^ user.cpp:10:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ceas3.in","r",stdin); ^ user.cpp:11:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ceas3.out","w",stdout); ^