int a[] = {3, 2, 3, 5, 7, 5, 9 ,2}; std::vector<int> vec(a, a+sizeof(a)/sizeof(int) ); std::sort(vec.begin(), vec.end() ); vector<int>::iterator iter_end; iter_end = std::unique(vec.begin(), vec.end() ); vec.erase(iter_end, vec.end() );
原文：http://www.cnblogs.com/Daringoo/p/4465906.html