Compilare: user.cpp: In function ‘int main()’: user.cpp:39:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 1; j < V.size(); ++ j) Sum[j] = Sum[j - 1] + V[j]; ^ user.cpp:40:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = V.size(); j < 2 * V.size(); ++ j) Sum[j] = Sum[j - 1] + V[j - V.size()]; ^ user.cpp:43:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < 2 * V.size(); ++ j) ^ user.cpp:48:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(D.size() && j >= V.size() - 1) ^ user.cpp:50:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == V.size() - 1) ^