http://www.cnblogs.com/oomusou/archive/2006/12/10/587727.html
#include <iostream>
#include <algorithm>
#include<iterator>
using namespace std;
int main () {
int ia[] = {1,2,3};
copy(ia, ia + sizeof(ia) / sizeof(int), ostream_iterator<int>(cout, " "));
return 0;
}
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