Compilare: user.cpp: In function ‘int main()’: user.cpp:55:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=A.size()+1;i+A.size()-1<=n;i++) ^ user.cpp:58:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (minim>A.size()/2)minim=A.size()/2; ^ user.cpp:63:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<=A.size()/2;i++) ^