Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:20:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp:29:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int activate(int)': main.cpp:88:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:133:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < events.size(); i++){ ~~^~~~~~~~~~~~~~~