Submission #251654

#	Time	Username	Problem	Language	Result	Execution time	Memory
251654		tinjyu	Crayfish scrivener (IOI12_scrivener)	C++14	26 / 100	240 ms	46584 KiB

scrivener

#include <iostream>
using namespace std;
char last;

void Init() {}
string s[1000005];
char c[1000005],ad[1000005],ans[1000005];
long long int num[1000005],tmp;
long long int p,pp;
void TypeLetter(char L) {
	p++;
	
	
	c[p]='a';
	ad[p]=L;
	//cout<<s[p]<<endl;
}

void UndoCommands(int U) {
	p++;
	
	c[p]='b';
	num[p]=U;
	//cout<<s[p]<<endl;
}

char GetLetter(int P) {
	if(tmp==0)
	{
		tmp=1;
		for(int i=p;i>=1;i--)
		{
			if(c[i]=='a')
			{
				pp++;
				ans[pp]=ad[i];
			}
			else
			{
				i-=num[i];
			}
		}
	}
	return ans[pp-P];
}

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