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] - 1].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[poz - 1].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:102:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for (int h = 0; h < vec[R[i][j] - 1].size(); h++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~