Compilare: user.cpp: In function ‘void le(int)’: user.cpp:33:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (p*2 <= kupac.size()-1) { ^ user.cpp:34:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p*2+1 > kupac.size()-1) min1 = p*2; ^ user.cpp: In function ‘int main()’: user.cpp:79:17: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] int a; ^ user.cpp:91:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz[op2] <= kupac.size()-1) kivesz_kupac (poz[op2]); ^