找出水王

#include<iostream>
#include<string>
using namespace std;
#define N 5

void main()
{
    int n = 0;
    string a[N], m;
    cout << "输入ID：" ;
    for (int i = 0; i < N; i++)
    {
        cin >> a[i];
    }

    m = a[0];

    for (int i = 0; i < N; i++)
    {
        if (m == a[i])
        {
            n += 1;
        }
        else
            n -= 1;
        if (n < 0)
        {
            m = a[i];
        }
    }
    cout << "水王是：" << m << endl;
}