Compilare: main.cpp: In function 'void dfs(int)': main.cpp:14:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void desfrunz(int, int, int)': main.cpp:41:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v.size(); i++) ~~^~~~~~~~~~ main.cpp:81:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < ans.size(); i++) ~~^~~~~~~~~~~~