Compilare: main.cpp: In function 'void dfs1(int, int)': main.cpp:23:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[nod].size(); i ++) { ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:59:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int as = 0; as < v[knot].size(); as++) { ~~~^~~~~~~~~~~~~~~~ main.cpp:67:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int as = 0; as < v[vecin].size(); as++) { ~~~^~~~~~~~~~~~~~~~~