Compilare: main.cpp: In function 'void dfs1(int)': main.cpp:32:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < g[node].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < gi[node].size(); i++) ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:92:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < ctc[i].size(); j++) ~~^~~~~~~~~~~~~~~