Compilare: user.cpp: In function ‘int main()’: user.cpp:37:17: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if (x>>(n-1)&1==1) next1=curent*2-maxx,next2=curent*2-maxx+1; else ^ user.cpp:24:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biti.in","r",stdin); ^ user.cpp:25:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("biti.out","w",stdout); ^ user.cpp:26:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^