Compilare: user.cpp: In function ‘void AibUpdate(int, int)’: user.cpp:11:10: warning: statement has no effect [-Wunused-value] for(x;x<=n;x=x+((x&(x-1))^x)) ^ user.cpp: In function ‘long long int AibQuery(int)’: user.cpp:16:10: warning: statement has no effect [-Wunused-value] for(x;x>0;x=x-((x&(x-1))^x)) ^ user.cpp: In function ‘int main()’: user.cpp:41:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<queries[i].size();j++) ^ user.cpp:21:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("calafat.in","r",stdin); ^ user.cpp:22:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("calafat.out","w",stdout); ^ user.cpp:24:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&q); ^ user.cpp:26:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^ user.cpp:35:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&a,&b); ^