Compilare: main.cpp: In function 'void solve()': main.cpp:71:25: warning: unused variable 'nod' [-Wunused-variable] int maxim = -1, nod; ^~~ main.cpp:93:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < g[nod].size(); j++) ~~^~~~~~~~~~~~~~~ main.cpp:92:26: warning: variable 'nod2' set but not used [-Wunused-but-set-variable] int minim = 1e9, nod2; ^~~~