Compilare: main.cpp: In function 'void Tree::initRMQ()': main.cpp:57:22: 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.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:60:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i = 0; i + (1 << step) <= euler.size(); i++) { | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:61:60: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 61 | rmq[i][step] = merge(rmq[i][step - 1], rmq[i + (1 << step - 1)][step - 1]); | ~~~~~^~~