Compilare: main.cpp: In function 'void build_rmq()': main.cpp:57:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(int i = 0; i < euler_tour.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:61:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int j = 1; (1 << j) <= euler_tour.size(); j++) { | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:62:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = 0; i + (1 << j) - 1 < euler_tour.size(); i++) { | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~