Compilare: user.cpp: In function ‘answer query(int, int, int, int, long long int, long long int, long long int)’: user.cpp:2:24: warning: integer overflow in expression [-Woverflow] #define inf ((1LL<<63)-1) ^ user.cpp:36:63: note: in expansion of macro ‘inf’ return query(2*node+1,middle+1,right,position,value,0,inf); ^ user.cpp:2:24: warning: integer overflow in expression [-Woverflow] #define inf ((1LL<<63)-1) ^ user.cpp:41:30: note: in expansion of macro ‘inf’ return {left-1,0,inf}; ^ user.cpp:2:24: warning: integer overflow in expression [-Woverflow] #define inf ((1LL<<63)-1) ^ user.cpp:47:59: note: in expansion of macro ‘inf’ left_answer=query(2*node,left,middle,position,value,0,inf); ^ user.cpp: In function ‘int check(long long int)’: user.cpp:2:24: warning: integer overflow in expression [-Woverflow] #define inf ((1LL<<63)-1) ^ user.cpp:55:37: note: in expansion of macro ‘inf’ start=query(1,1,n,start,x,0,inf).position+1; ^ user.cpp: In function ‘void read(long long int&)’: user.cpp:66:36: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,dim,stdin); ^ user.cpp:74:36: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,dim,stdin); ^ user.cpp: In function ‘int main()’: user.cpp:80:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ksecv4.in","r",stdin); ^ user.cpp:81:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ksecv4.out","w",stdout); ^ user.cpp:84:28: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff,1,dim,stdin); ^