Compilare: user.cpp: In function ‘void insert(Trie*, int)’: user.cpp:60:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<nod->V.size();i++) ^ user.cpp: In function ‘void Solve(int)’: user.cpp:75:9: warning: unused variable ‘hash1’ [-Wunused-variable] int hash1=0,hash2=0,Min=2005; ^ user.cpp:75:17: warning: unused variable ‘hash2’ [-Wunused-variable] int hash1=0,hash2=0,Min=2005; ^ user.cpp:75:25: warning: unused variable ‘Min’ [-Wunused-variable] int hash1=0,hash2=0,Min=2005; ^