Compilare: main.cpp: In function 'int popMin()': main.cpp:50:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:77:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<muchii[nod.nod].size(); ++i) ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:69:9: warning: unused variable 'k' [-Wunused-variable] int k=0; ^