Compilare: main.cpp: In function 'int main()': main.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int i = 0; i < grade.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:66:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 66 | if(ciclu.size() >= m) | ~~~~~~~~~~~~~^~~~ main.cpp:68:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int i = 0; i < ciclu.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~~~