Compilare: main.cpp: In function 'void dfs1(int)': main.cpp:28:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < gr[nod].size(); i++) { ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:38:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < g[nod].size(); i++) { ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void rezolve()': main.cpp:67:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < v[i].size(); j++) ~~^~~~~~~~~~~~~