Compilare: main.cpp: In function 'void stergere(int)': main.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if(poz*2+1 < heap.size() && (heap[poz*2].first < heap[poz].first || heap[poz*2+1].first < heap[poz].first)){ | ~~~~~~~~^~~~~~~~~~~~~ main.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | else if(poz*2 < heap.size() && heap[poz*2].first < heap[poz].first){ | ~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int i = 0; i < heap.size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:78:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for(int i = 0; i < ordine.size(); i++){ | ~~^~~~~~~~~~~~~~~