Compilare: main.cpp: In member function 'void AIB::add(ll, ll)': main.cpp:96:35: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | void add(ll p,ll val=1){for(;p<v.size();p+=lsb(p))v[p]+=val;} | ~^~~~~~~~~ main.cpp: In function 'void precalcfact()': main.cpp:339:10: warning: unused variable 'j' [-Wunused-variable] 339 | ll i,j; | ^ main.cpp: In function 'void solve(ll)': main.cpp:421:14: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 421 | for(i=0;i<rez.size();i++) | ~^~~~~~~~~~~ main.cpp:378:14: warning: unused variable 'j' [-Wunused-variable] 378 | ll n,m,i,j,k,l,x,y; | ^ main.cpp:378:16: warning: unused variable 'k' [-Wunused-variable] 378 | ll n,m,i,j,k,l,x,y; | ^ main.cpp:378:18: warning: unused variable 'l' [-Wunused-variable] 378 | ll n,m,i,j,k,l,x,y; | ^