Compilare: main.cpp: In function 'void DFS(int, int)': main.cpp:26:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp:43:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ~~^~~~~~~~~~~~~~~ main.cpp:41:28: warning: 'bosu' may be used uninitialized in this function [-Wmaybe-uninitialized] which[nod] = which[bosu]; ~~~~~~~~~~^