Compilare: user.cpp: In function ‘int main()’: user.cpp:39:13: warning: unused variable ‘r’ [-Wunused-variable] int r=i; ^ user.cpp:32:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taste.in","r",stdin); ^ user.cpp:33:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("taste.out","w",stdout); ^ user.cpp:34:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&x,&y); ^ user.cpp: In function ‘int cauta_bin(int, int)’: user.cpp:17:15: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] int st,dr,mij; ^