Submission #233511

#	Time	Username	Problem	Language	Result	Execution time	Memory
233511		Dremix10	Crayfish scrivener (IOI12_scrivener)	C++17	34 / 100	148 ms	262148 KiB

scrivener

#include <bits/stdc++.h>
using namespace std;
char last;
string ans="";
vector<string> state(1000001);
int curr=0;
void Init() {


}

void TypeLetter(char L) {
    last = L;
    ans+=last;
    state[curr++]=ans;

}

void UndoCommands(int U) {

    //int i;
    int k=curr;
    ans=state[k-U-1];
    state[curr++]=ans;

}

char GetLetter(int P) {

    return ans[P];

}


/*

14
T a
T b
P 1
T d
U 2
U 1
P 2
T e
U 1
U 5
T c
P 2
U 2
P 2

*/

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 22 / 22
• Subtask 4: 0 / 26
• Subtask 5: 0 / 40