Compilare: main.cpp: In function 'int main()': main.cpp:82:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for (int i = 0; i < blocuri.size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:86:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 86 | for (int j = 0; j < blocuri.size(); j++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:96:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for (int j = 0; j < blocuri.size(); j++) | ~~^~~~~~~~~~~~~~~~