Eroare de compilare: user.cpp:7:1: error: expected initializer before ‘int’ int n; ^ user.cpp: In function ‘int main()’: user.cpp:16:17: error: ‘n’ was not declared in this scope scanf("%d",&n); ^ user.cpp:23:9: error: ‘sphi’ was not declared in this scope sphi[i] = sphi[i - 1] + phi[i]; ^ user.cpp:25:26: error: ‘sphi’ was not declared in this scope printf("%lld\n", 2 * sphi[n] + 1); ^ user.cpp:13:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("emptri.in","r",stdin); ^ user.cpp:14:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("emptri.out","w",stdout); ^