Compilare: user.cpp: In function ‘int main()’: user.cpp:10:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("minlcm.in", "r", stdin); ^ user.cpp:11:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("minlcm.out", "w", stdout); ^ user.cpp:13:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &T); ^ user.cpp:16:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &N), maxi = 0, mini = 1LL << 40; ^ user.cpp:20:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &ai), ap[ai] ++; ^ user.cpp:39:36: warning: ‘min2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (cnt == 0 && 1LL * min1 * min2 / i < mini) ^ user.cpp:39:29: warning: ‘min1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (cnt == 0 && 1LL * min1 * min2 / i < mini) ^