Compilare: user.cpp: In function ‘int main()’: user.cpp:42:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.in","r",stdin); ^ user.cpp:43:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.out","w",stdout); ^ user.cpp:46:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:48:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf",&x); ^ user.cpp: In function ‘int cautbin1(int, int*, int)’: user.cpp:17:12: warning: ‘rasp’ may be used uninitialized in this function [-Wmaybe-uninitialized] return rasp; ^ user.cpp: In function ‘void sir(int*, int, int*)’: user.cpp:34:24: warning: ‘rasp’ may be used uninitialized in this function [-Wmaybe-uninitialized] poz[i]=rasp; ^