Compilare: main.cpp: In function 'void dfs(int, int, int, int)': main.cpp:27:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for (int i = 0; i < graf[nod].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void preCalcRMQ()': main.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for (int i = 1; i < liniarizare.size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:53:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 1; i < liniarizare.size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:58:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for (int i = 1; i + (1 << l) - 1 < liniarizare.size(); ++i) | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~