Compilare: user.cpp: In function ‘void Read()’: user.cpp:118:20: warning: variable ‘Y’ set but not used [-Wunused-but-set-variable] auto X=*it,Y=*(next(it)); ^ user.cpp:39:15: warning: unused variable ‘i’ [-Wunused-variable] long long i; ^ user.cpp: In function ‘long long int Comb(long long int, long long int)’: user.cpp:174:20: warning: unused variable ‘k1’ [-Wunused-variable] long long n1=n,k1=k; ^ user.cpp:175:15: warning: unused variable ‘n2’ [-Wunused-variable] long long n2=n1; ^ user.cpp: In function ‘void Solve()’: user.cpp:188:15: warning: unused variable ‘i’ [-Wunused-variable] long long i; ^ user.cpp:189:32: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] long long count=0,result=1,ok=0; ^