给定一个整数数组和目标值，在该数组找出和为目标值的两个整数并返回下标

#include<iostream>
using namespace std;
#include<vector>
class sum
{
public:
	void two(vector<int>p, int dst)
	{
		for (int i = 0; i < p.size(); i++)
		{
			for (int j = 0; j <i; j++)
			{
				if (i != j)
				{
					int sum = p[i] + p[j];
					if (sum == dst)
					{
						cout << "目标元素1：" << p[i] << "\t下标：" << i << endl;
						cout << "目标元素2：" << p[j] << "\t下标：" << j << endl;
					}

				}
			}
		}
	}
};

void test()
{
	vector<int>p;
	p.push_back(2);
	p.push_back(7);
	p.push_back(11);
	p.push_back(5);
	int dst = 9;
	sum v;
	v.two(p, dst);
 }

int main()
{
	test();
	system("pause");
	return 0;
}