Compilare: main.cpp: In instantiation of 'void FenwickTree<Type>::add(int64_t, Type) [with Type = long int; int64_t = long int]': main.cpp:86:16: required from here main.cpp:35:27: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | while (poz<bit.size()) { | ~~~^~~~~~~~~~~ main.cpp: In instantiation of 'int64_t FenwickTree<Type>::binary_lifting(int64_t) [with Type = long int; int64_t = long int]': main.cpp:90:41: required from here main.cpp:57:37: warning: comparison of integer expressions of different signedness: 'int64_t' {aka 'long int'} and 'std::vector<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | if (poz+step<bit.size()&&tgt-bit[poz+step]>0) { | ~~~~~~~~^~~~~~~~~~~