Compilare: main.cpp: In function 'int add(int)': main.cpp:31:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int popMin()': main.cpp:47:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:70:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<muchii[nod].size(); ++i) ~^~~~~~~~~~~~~~~~~~~