Compilare: main.cpp: In function 'int main()': main.cpp:40:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nodd].size();i++) { ~^~~~~~~~~~~~~~~ main.cpp:17:27: warning: unused variable 'newn' [-Wunused-variable] int x, y, c, i, nodd, newn, cost, bun, rez, z; ^~~~ main.cpp:17:39: warning: variable 'bun' set but not used [-Wunused-but-set-variable] int x, y, c, i, nodd, newn, cost, bun, rez, z; ^~~