Compilare: user.cpp: In function ‘void Verif(int)’: user.cpp:30:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < S.size(); i ++) sum += S[i]; ^ user.cpp:31:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < S.size() - 1; i ++) ^ user.cpp: In function ‘void Bakc(int, int)’: user.cpp:47:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = X[k - 1] + 1; i <= P.size() - m + k && prod <= V[n - 1].first; i ++) ^ user.cpp: In function ‘int main()’: user.cpp:111:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < P.size(); i ++) ^