Compilare: user.cpp: In function ‘int main()’: user.cpp:13:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < A.size(); i++) ^ user.cpp:21:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < S.size() - 1; i++) ^ user.cpp:28:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] i + V[i] + 1 < S.size() && ^ user.cpp:39:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < S.size(); i++) ^