제출 #522508

#제출 시각아이디문제언어결과실행 시간메모리
522508JesusType Printer (IOI08_printer)C++14
90 / 100
1073 ms63904 KiB
#include <bits/stdc++.h>

using namespace std;

char ans[5000000];

struct arbol{
    char letra;
    int opcion;
    bool fin_palabra=false;
    int hijos[28];
};

string mayor;

int aux,desocupado=1,valor=1;

arbol raices[500002];


void res(int pos, bool rama){
    if(pos!=0) {
            ans[aux]=raices[pos].letra;
            aux++;
    }
    if(raices[pos].fin_palabra==true) {
            ans[aux]='P';
            aux++;
    }
    int m=-1;
    for(int i=0;i<28;i++){
        if(raices[pos].hijos[i]!=0){
            if(raices[raices[pos].hijos[i]].opcion==valor) {
                   // cout<<pos<<endl;
                    m=i;
            }
            else res(raices[pos].hijos[i],false);
        }
    }
    if(pos==0&&m!=-1) res(raices[pos].hijos[m],true);
    else if(m!=-1) res(raices[pos].hijos[m],rama);
    if(pos!=0&&rama==false) {
            ans[aux]='-';
            aux++;
    }
}


int main()
{
    ios_base::sync_with_stdio();cin.tie(0);
    int n;
    cin>>n;
    string palabra;
    for(int i=0;i<n;i++){
        cin>>palabra;
        if(palabra.size()>mayor.size()) valor++;
        aux=0;
        for(char l:palabra){
            if(raices[aux].hijos[l-'a']!=0) aux=raices[aux].hijos[l-'a'];
            else{
                raices[aux].hijos[l-'a']=desocupado;
                aux=desocupado;
                raices[aux].letra=l;
                desocupado++;
            }
            if(mayor.size()<palabra.size()) raices[aux].opcion=valor;
        }
        if(mayor.size()<palabra.size()) mayor=palabra;
        raices[aux].fin_palabra=true;
    }
    desocupado=0;
    aux=0;
    res(0,false);
    cout<<aux<<endl;
    for(int i=0;i<aux;i++){
        cout<<ans[i]<<endl;
    }
    return 0;
}
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