Compilare: main.cpp: In function 'void bkt(int)': main.cpp:25:20: warning: comparison of integer expressions of different signedness: 'std::vector<bool>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 25 | if(path.size() == n + (1 << n) - 1){ | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i = 0; i < path.size(); i++){ | ~~^~~~~~~~~~~~~