Compilare: user.cpp: In function ‘int main()’: user.cpp:18:21: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[100010]’ [-Wformat=] scanf ("%s", &st); ^ user.cpp:22:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < ss.size (); ++i) ^ user.cpp:15:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("password.in", "r", stdin); ^ user.cpp:16:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("password.out", "w", stdout); ^ user.cpp:18:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%s", &st); ^