Submission #425905

#	Time	Username	Problem	Language	Result	Execution time	Memory
425905		Azimjon	Crayfish scrivener (IOI12_scrivener)	C++17	34 / 100	170 ms	262148 KiB

scrivener

#include <bits/stdc++.h>

using namespace std;

const int N = 1111111;
int p[N];
string q[N];
string s;

int cnt = 0;

void Init() { p[0] = -1; }

void TypeLetter(char L) {
	int id = ++cnt;

	p[id] = cnt - 1;

	q[id] = q[cnt - 1] + L;
	s.push_back(L);
}

void UndoCommands(int U) {
	int par = cnt - U;

	int id = ++cnt;

	p[id] = par;

	q[id] = q[par];

	// for (int i = 0; i <= 20; i++) {
	// 	cout << p[i] << " ";
	// }
	// cout << endl;
	// for (int i = 0; i <= 20; i++) {
	// 	cout << (char)v[i] << " ";
	// }
	// cout << endl;
}

char GetLetter(int P) { return q[cnt][P]; }

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