Compilare: main.cpp: In function 'void printTree(int, std::vector<int>*)': main.cpp:28:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for (int i = 0; i < currentLevel.size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:30:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int j = 0; j < tree[currentLevel[i]].size(); ++j) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~