Compilare: main.cpp: In function 'int main()': main.cpp:68:30: 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 < cc[1].size(); ++i) { | ~~^~~~~~~~~~~~~~ main.cpp:75:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(int j = 1; j < cc[i].size(); ++j) | ~~^~~~~~~~~~~~~~ main.cpp:77:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for(int j = 0; j < cc[i + 1].size(); ++j) | ~~^~~~~~~~~~~~~~~~~~