数组排序-排序功能

Question

I have this code:

for (i=1;i<=n;i++)
    cin>>v[i];
sort(v,v+n+1);
for (i=1;i<=n;i++)
    cout<<v[i]<<" ";

I don't know why when I enter for example n=5 and the values -2 -5 0 4 3 the program outputs -2 0 3 4 0. Can you help me figure this out?

Answer 1

Indices start at 0 in c++, so you have to do the following:

for (i = 0; i < n; i++)
  cin >> v[i];
sort(v, v + n);
for (i = 0; i < n; i++)
  cout << v[i] << " ";