Compilare: main.cpp: In function 'int main()': main.cpp:50:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i = 0, j = 1; i < c.size(); i++, j = ((j == k) ? 1 : (j + 1))) | ~~^~~~~~~~~~