Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:9:13: error: ‘a’ was not declared in this scope scanf("%d",&a) ^ user.cpp:10:1: error: expected ‘;’ before ‘scanf’ scanf("%d %d",&a,&b) ^ user.cpp:7:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen("adunare.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("adunare.out","w",stdout); ^