Compilare: main.cpp: In function 'int query(int, int)': main.cpp:79:9: warning: unused variable 'loglen' [-Wunused-variable] 79 | int loglen = E[len]; | ^~~~~~ main.cpp: In function 'int main()': main.cpp:105:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for(int i = 0; i < euler.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp:110:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 110 | for(int i = 0; i < euler.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp:114:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | if(j < euler.size()) { | ~~^~~~~~~~~~~~~~ main.cpp:128:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 128 | for(int i = 2; i <= euler.size(); i++) { | ~~^~~~~~~~~~~~~~~