Compilare: main.cpp: In function 'void bkt(int)': main.cpp:25:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 25 | if(path.size() == (1 << n)){ | ~~~~~~~~~~~~^~~~~~~~~~~ main.cpp:30:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i = 1; i < path.size(); i++){ | ~~^~~~~~~~~~~~~