Compilare: user.cpp: In function ‘void gen(long long int)’: user.cpp:9:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (p<=lim) ^ user.cpp: In function ‘long long int cauta_bin(int, int)’: user.cpp:25:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(s[mij]>aux) dr=mij-1; ^ user.cpp:28:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (s[mij]>aux) --mij; ^ user.cpp: In function ‘int main()’: user.cpp:35:34: 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:36:36: 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:37:28: 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 ‘long long int cauta_bin(int, int)’: user.cpp:17:15: warning: ‘mij’ may be used uninitialized in this function [-Wmaybe-uninitialized] int st,dr,mij; ^