Compilare: main.cpp: In function 'void djk()': main.cpp:27:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod.se].size(); ++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void Union(int, int, ll)': main.cpp:61:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < dsu[p2].size(); ++i) ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void add(int)': main.cpp:90:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); ++i) ~~^~~~~~~~~~~~~~~