Compilare: main.cpp: In member function 'void SparseTable::_precompute_lg2()': main.cpp:53:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 2; i <= euler.size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In member function 'void SparseTable::init()': main.cpp:62:27: 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 < euler.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:68:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for (int j = 0; j + (1 << i) - 1 < euler.size(); j++) | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:137:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 137 | for (int j = 0; j < poz[i].size() - 1; j++) | ~~^~~~~~~~~~~~~~~~~~~