Compilare: main.cpp: In function 'int parent(int)': main.cpp:18:12: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 18 | if(p[a]=a) | ~~~~^~ main.cpp: In function 'int main()': main.cpp:75:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for(h=0; h<poz[sorted[j]].size(); h++) | ~^~~~~~~~~~~~~~~~~~~~~~