Compilare: user.cpp: In function ‘int main()’: user.cpp:18:28: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[10005]’ [-Wformat=] scanf("%d%d%s",&n,&k,&s); ^ user.cpp:16:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alibaba.in","r",stdin); ^ user.cpp:17:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("alibaba.out","w",stdout); ^ user.cpp:18:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%s",&n,&k,&s); ^