C++类属性unique

类属性算法unique的作用是从输入序列中去掉所有相邻的重复元素。

 1 #include <iostream>
 2 #include <cassert>
 3 #include <algorithm>
 4 #include <vector>
 5 #include <string>
 6 #include <iterator>
 7  using namespace std;
 8 
 9  int main()
10 {
11     cout<<"Illustrating the generic unique algorithm."<<endl;
12     const int N=11;
13     int array1[N]={1,2,0,3,3,0,7,7,7,0,8};
14     vector<int> vector1;
15     for (int i=0;i<N;++i)
16         vector1.push_back(array1[i]);
17 
18     vector<int>::iterator new_end;
19     new_end=unique(vector1.begin(),vector1.end());
20     assert(vector1.size()==N);
21 
22     vector1.erase(new_end,vector1.end());
23     copy(vector1.begin(),vector1.end(),ostream_iterator<int>(cout," "));
24     cout<<endl;
25 
26     return 0;
27 }

输出结果为

Illustrating the generic unique algorithm.
1 2 0 3 0 7 0 8