제출 #911587

#제출 시각아이디문제언어결과실행 시간메모리
911587Muhammad_AneeqCrayfish scrivener (IOI12_scrivener)C++17
34 / 100
125 ms262144 KiB
#include <string>
using namespace std;
int const N=1e6+10;
struct node
{
	string s="";
};
node* com[N]={};
int num=0;
void Init()
{
	for (int i=0;i<N;i++)
		com[i]=new node();
}
void TypeLetter(char L)
{
	num++;
	com[num]->s=com[num-1]->s+L;	
}
void UndoCommands(int U)
{
	com[num+1]->s=com[num-U]->s;
	num++;
}
char GetLetter(int P)
{
	return com[num]->s[P];
}
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