Compilare: user.cpp: In function ‘void update(int, int)’: user.cpp:12:27: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] poz+=(poz^(poz&poz-1)); ^ user.cpp: In function ‘int query(int)’: user.cpp:22:27: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] poz-=(poz^(poz&poz-1)); ^ user.cpp: In function ‘int main()’: user.cpp:28:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scmax.in","r",stdin); ^ user.cpp:29:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scmax.out","w",stdout); ^ user.cpp:30:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:33:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&lp[i]); ^