Compilare: user.cpp: In function ‘void dijkstra(int)’: user.cpp:40:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[x].size(); i++) ^ user.cpp:44:39: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (d[y]>d[x] + w || d[y]==d[x] + w&&t[x]<t[y]) ^ user.cpp: In function ‘int main()’: user.cpp:71:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < catun.size();i++) ^