Compilare: main.cpp: In function 'int main()': main.cpp:72:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for(int i = 0; i < ctc.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:105:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for(int i = 0; i < fin.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~