Compilare: main.cpp: In function 'bool hasParent(std::vector<int>, int)': main.cpp:20:60: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | if(getParentIndex(index) >= 0 && getParentIndex(index) < h.size()) return true; | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'bool hasRightChild(std::vector<int>, int)': main.cpp:55:62: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | if (rightChildIndex(index) > 0 && rightChildIndex(index) < h.size() ) return true; | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'bool hasLeftChild(std::vector<int>, int)': main.cpp:61:60: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | if (leftChildIndex(index) > 0 && leftChildIndex(index) < h.size() ) return true; | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int getIndex(std::vector<int>&, int)': main.cpp:102:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for(int i = 0; i < h.size(); ++i){ | ~~^~~~~~~~~~ main.cpp:105:1: warning: control reaches end of non-void function [-Wreturn-type] 105 | } | ^