Compilare: main.cpp: In function 'int main()': main.cpp:48:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (int j = 0; j < vec[R[i - 1]].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:64:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for (int j = 0; j < vec[i].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:79:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for (int i = 0; i < vec[Ajut[l]].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~