UVALive 5029

用字典树来查询，关键是怎么处理输入的8个数字代表的字符，把每个数分别除以0.95和1.05得到8的区间，按左区间从小到大排序，那么和第一个区间有交集的必然代表二进制0，与它没交集的之后都是1，因为题目保证输入数据是合法的.

#include<cmath>
#include<cstdio>
#include<string>
#include<vector>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
const double eps = 1e-6;
struct Width{
    int idx;
    double val, l, r;
    Width(int idx, double val){
        this->val = val;
        this->idx = idx;
        this->r = val/0.95;
        this->l = val/1.05;
    }
    bool operator < (const Width &A) const {
        if(fabs(l - A.l) < eps) return r + eps < A.r;
        return l + eps < A.l;
    }
    bool isInRange(const Width &A){
        return r + eps > A.l;
    }
};
struct Node{
    int cnt;
    Node *child[26];
    Node(){
        cnt = 0;
        for(int i = 0;i < 26;i ++) child[i] = NULL;
    }
};
Node *root;
vector<Width>V;
void insertTrie(char str[]){
    Node* tmp = root;
    while(str[0]){
        int idx = str[0]-'a';
        if(tmp->child[idx] == NULL) tmp->child[idx] = new Node();
        tmp = tmp->child[idx];
        tmp->cnt ++;
        str++;
    }
}
int searchTrie(char str[]){
    Node *tmp = root;
    while(str[0]){
        int idx = str[0]-'a';
        if(tmp->child[idx] == NULL) return 0;
        tmp = tmp->child[idx];
        str++;
    }
    return tmp->cnt;
}
char fuckAuthorAndFuckAuthorMother(){
    int pos, ret(0);
    sort(V.begin(), V.end());
    for(int i = 1;i < V.size();i ++){
        if(V[0].isInRange(V[i])) continue;
        pos = i;
        break;
    }
    for(int i = pos;i < V.size();i ++) ret |= (1 << V[i].idx);
    return ret;
}
int main(){
    int n, m, t;
    char str[50];
    freopen("in.cpp", "r", stdin);
    while(~scanf("%d%d", &n, &m)){
        root = new Node();
        for(int i = 0;i < n;i ++){
            scanf("%s", str);
            insertTrie(str);
        }
        int ans = 0;
        for(int i = 0;i < m;i ++){
            scanf("%d", &t);
            memset(str, 0, sizeof str);
            for(int j = 0;j < t;j ++){
                V.clear();
                double tmp;
                for(int k = 7;k >= 0;k --){
                    scanf("%lf", &tmp);
                    V.push_back(Width(k, tmp));
                }
                str[j] = fuckAuthorAndFuckAuthorMother();
            }
            //printf("str = %s
", str);
            ans += searchTrie(str);
        }
        printf("%d
", ans);
    }
    return 0;
}