c++实现哈希查找算法

以下是C++实现哈希查找算法的示例代码：

#include <iostream>
#include <cstring>
using namespace std;

const int N = 100010;

int h[N], e[N], ne[N], idx;

void insert(int x)
{
    int k = (x % N + N) % N;
    e[idx] = x;
    ne[idx] = h[k];
    h[k] = idx++;
}

bool find(int x)
{
    int k = (x % N + N) % N;
    for (int i = h[k]; i != -1; i = ne[i])
        if (e[i] == x)
            return true;
    return false;
}

int main()
{
    memset(h, -1, sizeof h);
    int n;
    cin >> n;
    while (n--)
    {
        char op;
        int x;
        cin >> op >> x;
        if (op == 'I') insert(x);
        else
        {
            if (find(x)) puts("Yes");
            else puts("No");
        }
    }
    return 0;
}