Compilare: user.cpp: In function ‘int main()’: user.cpp:12:36: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[55001]’ [-Wformat=] scanf("%ld %ld \n%s", &n, &k, &s); ^ user.cpp:18:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[s[p]]=1; ^ user.cpp:9:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.in", "r", stdin); ^ user.cpp:10:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.out", "w", stdout); ^ user.cpp:12:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld %ld \n%s", &n, &k, &s); ^