Compilare: main.cpp: In function 'void dfs(int)': main.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < mu[nod].size(); i++) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void cit_afis(int, bool)': main.cpp:28:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < mu[i].size(); j++) ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:15: warning: unused variable 'x' [-Wunused-variable] int n, m, x, y, nr = 0; ^ main.cpp:43:18: warning: unused variable 'y' [-Wunused-variable] int n, m, x, y, nr = 0; ^