Luogu2580 于是他错误的点名开始了 （Trie树）

复习\(Trie\)，忘了用\(val[]\)表示每个节点权值，用\(vis[]\)水过了

#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#define R(a,b,c) for(register int  a = (b); a <= (c); ++ a)
#define nR(a,b,c) for(register int  a = (b); a >= (c); -- a)
#define Max(a,b) ((a) > (b) ? (a) : (b))
#define Min(a,b) ((a) < (b) ? (a) : (b))
#define Fill(a,b) memset(a, b, sizeof(a))
#define Abs(a) ((a) < 0 ? -(a) : (a))
#define Swap(a,b) a^=b^=a^=b
#define ll long long

#define ON_DEBUG

#ifdef ON_DEBUG

#define D_e_Line printf("\n\n----------\n\n")
#define D_e(x)  cout << #x << " = " << x << endl
#define Pause() system("pause")
#define FileOpen() freopen("in.txt","r",stdin);

#else

#define D_e_Line ;
#define D_e(x)  ;
#define Pause() ;
#define FileOpen() ;

#endif

struct ios{
    template<typename ATP>ios& operator >> (ATP &x){
        x = 0; int f = 1; char c;
        for(c = getchar(); c < '0' || c > '9'; c = getchar()) if(c == '-')  f = -1;
        while(c >= '0' && c <= '9') x = x * 10 + (c ^ '0'), c = getchar();
        x*= f;
        return *this;
    }
}io;
using namespace std;
#include <bitset>

int n;

char s[1007];
bitset<1007> vis[500007];
int trie[500007][26], trieIndex;
inline void Insert(char *str){
	int rt = 0;
	for(register int i = 0; str[i] != '\0'; ++i){
		int v = str[i] - 'a';
		if(!trie[rt][v]){
			trie[rt][v] = ++trieIndex;
		}
		rt = trie[rt][v];
	}
}
inline int Query(char *str){
	int rt = 0, tot = 0;
	for(register int i = 0; str[i] != '\0'; ++i){
		int v = str[i] - 'a';
		if(!trie[rt][v]){
			return 0;
		}
		rt = trie[rt][v];
		++tot;
	}
	if(vis[rt][tot]) return 2;
	vis[rt][tot] = 1;
	return 1;
}

int main(){
    io>>n;
    R(i,1,n){
    	scanf("%s", s);
    	Insert(s);
    }

    int Ques;
    io >> Ques;
    while(Ques--){
    	scanf("%s", s);
    	int ans = Query(s);
    	switch(ans){
    		case 0 :{
    			printf("WRONG\n");
    			break;
    		}
    		case 1 :{
    			printf("OK\n");
    			break;
    		}
    		case 2 :{
    			printf("REPEAT\n");
    			break;
    		}
    	}
    }

    return 0;
}