Compilare: main.cpp: In function 'void InitEulerRMQ()': main.cpp:192:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<EulerNode>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 192 | for (int i = 0; i < euler.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void BuildEulerRMQ()': main.cpp:201:26: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 201 | int len = 1 << e - 1; | ~~^~~ main.cpp:202:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<EulerNode>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 202 | for (int lf = 0; lf + len < euler.size(); lf++) { | ~~~~~~~~~^~~~~~~~~~~~~~