Compilare: main.cpp: In function 'void DFS(int)': main.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i = 0; i < son[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void RMQ()': main.cpp:84:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 84 | if ((1 << i) > rmq[0].size()) | ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:90:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(int j = 0; j < rmq[0].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:94:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 94 | if (j + (1 << i) > rmq[0].size()) | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~