C++ vector数据合并&&去除重复项

vector用法详细介绍见链接

C++ vector用法的详细学习_IT.Husky的博客-CSDN博客

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示例

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main()
{
	vector<int> a{ 1,3,5,7,9 };
	vector<int> b{ 0,4,8,2,5 };
	vector<int> c{ 1,6,7,3,8 };
	vector<int> hebing;
	hebing.insert(hebing.end(), a.begin(),a.end());//数据合并
	hebing.insert(hebing.end(), b.begin(), b.end());
	hebing.insert(hebing.end(), c.begin(), c.end());
	sort(hebing.begin(), hebing.end());//升序排序
	vector<int>::iterator iter = unique(hebing.begin(), hebing.end());//遍历查找重复项
	hebing.erase(iter, hebing.end());//删除重复项

	cout << "abc合并&&删除重复项后的size = " << hebing.size() << endl;
	if (hebing.size() > 0)
	{
		cout << "分别为：" << endl;
		for (int i = 0; i < hebing.size(); i++)
		{
			cout << hebing[i] << endl;
		}
	}

	system("pause");
	return 0;
}

运行结果