Compilare: main.cpp: In function 'int popMin()': main.cpp:51:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:76:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<muchii[nod.nod].size(); ++i) ~^~~~~~~~~~~~~~~~~~~~~~~