手写哈希（实现简单的加数、查询）

#include <bits/stdc++.h>
#define inf 0x3f3f3f3f
#define FRE() freopen("in.txt", "r", stdin)
#define FRO() freopen("out.txt", "w", stdout)

using namespace std;
typedef long long ll;
const int maxn = 1e6+10;
const int MOD = 1e6+7;
int mp[maxn];

void addNum(int x)
{
    int t = x;
    x = x%MOD;
    while(true)
    {
        if(!mp[x])
        {
            mp[x] = t;
            return;
        }
        if(mp[x] != t)//处理冲突
            x = (x+1)%maxn;
        else return;
    }
}

bool query(int x)
{
    int t = x;
    x = x%MOD;
    while(true)
    {
        if(!mp[x]) return false;
        if(mp[x]!=t)
            x = (x+1)%maxn;
        else return true;
    }
}

int main()
{
    int n;
    scanf("%d",&n);
    while(n--)
    {
        int o,x,idx;
        scanf("%d%d",&o,&x);
        if(o==0)
        {
            addNum(x+1);
        }
        else
        {
            if(query(x+1)) printf("yes\n");
            else printf("no\n");
        }
    }
    return 0;
}