为啥非要加map匹配

P8306 【模板】字典树

elpsconr @ 2024-05-14 22:41:07

去掉map后只过了后面俩个测试点,为啥非要加map匹配?

#include<bits/stdc++.h>
using namespace std;
const int N=3e6+6;
typedef long long ll;
int n,q,idx,trie[N][63],st[N];
char s[N];
map<char,int> v;
void insert(char s[])
{
    int p=0;
    for(int i=0;s[i];++i)
    {
        if(!trie[p][s[i]]) trie[p][s[i]]=++idx;
        p=trie[p][s[i]];st[p]++;
    }
}
int query(char s[])
{
    int p=0;
    for(int i=0;s[i];++i)
    {
        if(!trie[p][s[i]]) return 0;
        p=trie[p][s[i]];
    }
    return st[p];
}
void solve()
{
    cin>>n>>q;
    //memset(st,0,sizeof st);
    //memset(trie,0,sizeof trie);
    for(int i=0;i<=idx;i++)
    {
        st[i]=0;
        for(int j=0;j<=62;j++)
        {
            trie[i][j]=0;
        }
    }
    idx=0;
    for(int i=0;i<n;++i)
    {
        cin>>s;insert(s);
    }
    for(int i=0;i<q;++i)
    {
        cin>>s;
        cout<<query(s)<<endl;
    }
}
int main()
{
   cin.tie(0)->sync_with_stdio(0);
   int t;cin>>t;
   //for(char i='a';i<='z';++i) v[i]=++idx;
   //for(char i='A';i<='Z';++i) v[i]=++idx;
   //for(char i='0';i<='9';++i) v[i]=++idx;
   while(t--)
   solve();
   return 0;
}

by SpeedStar @ 2024-05-14 23:53:54

@elpsconr 你看你trie数组第二维开了多大


by elpsconr @ 2024-05-15 00:07:32

@寒烟冷浅暮殇 63开五百也过不了,试过了


by elpsconr @ 2024-05-15 00:08:24

@寒烟冷浅暮殇 63开123也过不了,再大就mle了


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