Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:8:1: error: ‘in’ was not declared in this scope in>>x>>s; ^ user.cpp:18:1: error: ‘out’ was not declared in this scope out<<s-p[0]; ^ user.cpp:5:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vagoane.in", "r", stdin); ^ user.cpp:6:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vagoane.out", "w", stdout); ^