Eroare de compilare: user.cpp: In function ‘int gcd(int, int)’: user.cpp:9:26: error: expected ‘)’ before ‘mod’ else return gcd(b, a mod b); ^ user.cpp: In function ‘int main()’: user.cpp:22:13: warning: unused variable ‘d’ [-Wunused-variable] int d; ^ user.cpp:16:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("euclid2.in", "r", stdin); ^ user.cpp:17:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("euclid2.out", "rw", stdout); ^