Compilare: user.cpp: In function ‘void Solve()’: user.cpp:25:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < V.size(); j++) ^ user.cpp:49:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = j; k < V2.size(); k += K) ^ user.cpp:54:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = j; k < V2.size(); k += K) ^ user.cpp:44:13: warning: unused variable ‘am’ [-Wunused-variable] int am = V2.size() / K; ^ user.cpp:45:13: warning: unused variable ‘nb’ [-Wunused-variable] int nb = V2.size() % K; ^