Compilare: main.cpp: In function 'int main()': main.cpp:27:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int j = 0; j < v[poz].size(); j++) | ~~^~~~~~~~~~~~~~~ main.cpp:42:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int j = 0; j < v[poz].size(); j++) | ~~^~~~~~~~~~~~~~~