Compilare: user.cpp: In function ‘void df(int, int)’: user.cpp:14:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[k].size(); i++) ^ user.cpp:15:33: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(marcat[v[k][i]] == 0 && vcul[v[k][i]] == 0 || vcul[v[k][i]] == vcul[k]) ^