CF633C：Spy Syndrome 2——题解

https://vjudge.net/problem/CodeForces-633C

http://codeforces.com/problemset/problem/633/C

点击这里看巨佬题解

#include<iostream>
#include<cstdio>
#include<cstring>
#include<vector>
using namespace std;
const int M=;
int n,m,dp[M],l[M],tot=,now,ll,pos[M];
char s[M],t[M];
vector<int>v;
struct node{
    int ed,son[];
    node(){
        ed=;
        memset(son,,sizeof(son));
    }
}tree[];
void insert(int k){
    now=;
    int q;
    for(int i=ll+;i<=l[k]+ll;i++){
    if(t[i]<'a')q='a'-'A';else q=;
    if(tree[now].son[t[i]-'a'+q]==){
        tot++;
        tree[now].son[t[i]-'a'+q]=tot;
    }
    now=tree[now].son[t[i]-'a'+q];
    }
    tree[now].ed=k;
    return;
}
int main(){
    cin>>n;
    cin>>s+;
    cin>>m;
    for(int i=;i<=m;i++){
    cin>>t+ll+;
    pos[i]=ll+;
    l[i]=strlen(t+ll+);
    insert(i);
    ll+=l[i];
    }
    dp[]=;
    for(int i=;i<=n;i++){
    now=;
    for(int j=;j<=i&&now;j++){
        now=tree[now].son[s[i-j+]-'a'];
        if(tree[now].ed&&dp[i-j]){
        dp[i]=tree[now].ed;
        break;
        }
    }
    }
    for(int i=n;i>=;i-=l[dp[i]]){
    v.push_back(dp[i]);
    }
    int ss=v.size();
    for(int i=ss-;i>=;i--){
    for(int j=;j<=l[v[i]];j++){
        putchar(t[pos[v[i]]+j-]);
    }
    putchar(' ');
    }
    return ;
}