제출 #61797

#제출 시각아이디문제언어결과실행 시간메모리
61797theknife2001크레이피쉬 글쓰는 기계 (IOI12_scrivener)C++17
0 / 100
1075 ms2148 KiB
#include <bits/stdc++.h>
#define ii pair < char , char >
#define fi first
#define se second


using namespace std;
const int N=1e6+5;
ii a[N];
char s[N];
int cnt;
int i;


void Init() {}

void TypeLetter(char L) {
    a[i].fi='T';
    a[i].se=L;
    i++;
}

void UndoCommands(int U) {
    a[i].fi='U';
    a[i].se='0'+U;
    i++;
}

char GetLetter(int P) {
    if(cnt==0)
    {
        int j=0;
        while(i>0)
        {
            i--;
            if(a[i].fi=='T')
            {
                s[j]=a[i].se;
                j++;
            }
            else
            {
                i-=(a[i].se-'0');
            }
        }
        reverse(s,s+j);
    }
    assert(0);
    cnt=1;
    return s[P];
}
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