Compilare: user.cpp: In function ‘int query(int)’: user.cpp:8:22: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for(;poz;poz-=poz&(poz-1)^poz) ^ user.cpp: In function ‘void update(int, int)’: user.cpp:14:28: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] for( ; poz<=n; poz+=poz&(poz-1)^poz ) ^ user.cpp: In function ‘int main()’: user.cpp:19:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("datorii.in","r",stdin); ^ user.cpp:20:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("datorii.out","w",stdout); ^ user.cpp:22:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:25:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&cod); ^ user.cpp:31:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&cod,&x,&y); ^