Compilare: main.cpp: In function 'int main()': main.cpp:38:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < muchii.size(); ++i){ ~~^~~~~~~~~~~~~~~ main.cpp:52:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < rez.size(); i+=2) ~~^~~~~~~~~~~~ main.cpp: In function 'int root(int)': main.cpp:25:1: warning: control reaches end of non-void function [-Wreturn-type] } ^