Compilare: user.cpp: In function ‘void rez()’: user.cpp:25:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &A, &MOD); ^ user.cpp: In function ‘int main()’: user.cpp:35:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("inversmodular.in", "r", stdin); ^ user.cpp:36:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("inversmodular.out", "w", stdout); ^ user.cpp: In function ‘void rez()’: user.cpp:17:30: warning: ‘rezultat’ may be used uninitialized in this function [-Wmaybe-uninitialized] euclid(b, a%b, d, x1, y1); ^ user.cpp:24:15: note: ‘rezultat’ was declared here int x, y, rezultat; ^