Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:54:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:100:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < components.size(); j++){ ~~^~~~~~~~~~~~~~~~~~~ main.cpp:105:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < components.size(); j++) ~~^~~~~~~~~~~~~~~~~~~