Compilare: main.cpp: In function 'bool comp(drum, drum)': main.cpp:23:12: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 23 | else if(a.cost==b.cost) | ^ main.cpp: In function 'int main()': main.cpp:70:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<drum>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int i=0;i<theResultArray.size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~