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:34:63: 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:39:30: 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:45:59: 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:53:37: note: in expansion of macro ‘inf’ start=query(1,1,n,start,x,0,inf).position+1; ^ user.cpp: In function ‘int main()’: user.cpp:2:24: warning: integer overflow in expression [-Woverflow] #define inf ((1LL<<63)-1) ^ user.cpp:63:24: note: in expansion of macro ‘inf’ long long solution=inf,left=1,right=-1,middle; ^ user.cpp:63:28: warning: unused variable ‘left’ [-Wunused-variable] long long solution=inf,left=1,right=-1,middle; ^ user.cpp:63:44: warning: unused variable ‘middle’ [-Wunused-variable] long long solution=inf,left=1,right=-1,middle; ^ user.cpp:60:35: 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:61:37: 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:64:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&k,&m); ^ user.cpp:66:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&a[i]);