Eroare de compilare: user.cpp: In function ‘int main(int, char**)’: user.cpp:13:14: error: found ‘:’ in nested-name-specifier, expected ‘::’ cin>>n>>P: ^ user.cpp:13:13: error: ‘P’ is not a class, namespace, or enumeration cin>>n>>P: ^ user.cpp:7:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("suma.in", "r", stdin); ^ user.cpp:8:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("suma.out", "w", stdout); ^