Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:7:21: error: ‘n’ was not declared in this scope scanf("%d\n" , &n); ^ user.cpp:9:22: error: ‘a’ was not declared in this scope scanf("%d", &a[i+n]); ^ user.cpp:5:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("datorii.in","r",stdin); ^ user.cpp:6:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("datorii.out","w",stdout); ^