Compilare: main.cpp: In member function 'void Heap::showHeap()': main.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for(int i=0; i<this->values.size(); i++){ | ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Heap::heapify(int)': main.cpp:41:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | while (2 * i + 2 < this->values.size()) { | ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Heap::remove(int)': main.cpp:80:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int k=0; k<this->values.size(); k++){ | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:86:57: warning: 'i' may be used uninitialized [-Wmaybe-uninitialized] 86 | this->values[this->values.size()-1] = this->values[i]; | ^ main.cpp:79:9: note: 'i' was declared here 79 | int i; | ^