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 < v[nod].size(); ++i) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:53:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < compc[z].size(); ++j) ~~^~~~~~~~~~~~~~~~~ main.cpp:59:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < pos.size(); ++j) ~~^~~~~~~~~~~~ main.cpp:67:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < compc[z].size(); ++j) ~~^~~~~~~~~~~~~~~~~