Compilare: user.cpp: In function ‘int main()’: user.cpp:65:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<v[nod].size(); ++j) ^ user.cpp:59:13: warning: ‘nod’ may be used uninitialized in this function [-Wmaybe-uninitialized] f[nod]=1; ^ user.cpp:74:46: warning: ‘fiu’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol[fiu]=(cr*imod[cost]+sol[nod])%mod; ^