Compilare: main.cpp: In function 'ull Lento_Exp(ull, int)': main.cpp:41:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(ans_exp < exp) ~~~~~~~~^~~~~ main.cpp: In function 'ull Best_Sol(ull)': main.cpp:79:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^