Compilare: main.cpp: In function 'int main()': main.cpp:121:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | for (int i = 1; i < p.size(); i++) | ~~^~~~~~~~~~ main.cpp:127:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | for (int k = 1; (1 << k) < p.size(); k++) | ~~~~~~~~~^~~~~~~~~~ main.cpp:129:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for (int j = 1; j <= p.size() - (1 << k); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~