Compilare: main.cpp: In function 'int main()': main.cpp:36:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i = 0; i < blocuri.size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp:39:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int j = 0; j < centrale.size(); ++j) | ~~^~~~~~~~~~~~~~~~~