Compilare: main.cpp: In function 'int main()': main.cpp:39:23: 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 i = 0; i < blocuri.size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:41:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for (int j = 0; j < centrale.size(); j++) { | ~~^~~~~~~~~~~~~~~~~ main.cpp:51:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for (int i = 0; i < blocuri.size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:66:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for (int i = 0; i < blocuri.size(); i++) { | ~~^~~~~~~~~~~~~~~~