Compilare: main.cpp: In function 'int main()': main.cpp:42:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nodd].size();i++) { ~^~~~~~~~~~~~~~~ main.cpp:68:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) { ~^~~~~~~~~~~~~~ main.cpp:19:39: warning: variable 'bun' set but not used [-Wunused-but-set-variable] int x, y, c, i, nodd, newn, cost, bun, rez, z; ^~~