Submission #231300

#	Time	Username	Problem	Language	Result	Execution time	Memory
231300		blacktulip	Crayfish scrivener (IOI12_scrivener)	C++17	0 / 100	125 ms	12192 KiB

scrivener

#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define mp make_pair
#define pb push_back
char c;
//~ map<int,string> mpp;
int cev,koy,say,flag;
string s;
vector< pair<int,int> > v;
void Init(){
	
}
void TypeLetter(char L){
	v.pb(mp(say++,L-'a'));
}
void UndoCommands(int U){
	v.pb(mp(U,-1));
}
char GetLetter(int P){
	if(flag==0){
		reverse(v.begin(),v.end());
		int ban=0;
		for(int i=0;i<(int)v.size();i++){
			if(ban){ban--;i++;continue;}
			if(v[i].se==-1)ban=v[i].fi-1;
			else s+=v[i].se+'a';
		}
		reverse(s.begin(),s.end());
		flag=1;
	}
	//~ if((int)s.size()<=P){return -1;}
	return s[P];
}

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