Compilare: main.cpp: In function 'int binarySearch(long long int, const std::vector<long long int>&)': main.cpp:8:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 8 | if (i + step < v.size() && v[i + step] <= value) | ~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | if (pos + 1 < powers.size() && powers[pos + 1] - x < x - power) | ~~~~~~~~^~~~~~~~~~~~~~~