Compilare: main.cpp: In constructor 'ST::ST(const VI&)': main.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for (N = 1; N < values.size(); N <<= 1); | ~~^~~~~~~~~~~~~~~ main.cpp:19:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int p = 0; p < values.size(); ++p) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void HeavyPath()': main.cpp:96:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for (int i = 0; i < paths.size(); ++i) | ~~^~~~~~~~~~~~~~