Submission #310610

#	Time	Username	Problem	Language	Result	Execution time	Memory
310610		tengiz05	Crayfish scrivener (IOI12_scrivener)	C++17	60 / 100	1099 ms	10652 KiB

scrivener

#include <bits/stdc++.h>
using namespace std;
vector<pair<int, int>> op;
void Init() {
	return;
}
bool completed = false;
void TypeLetter(char L) {
	op.push_back({0, L});
	completed = false;
}

void UndoCommands(int U) {
	op.push_back({1, U});
	completed = false;
}
string s;
char GetLetter(int P) {
	if(completed == true){
		return s[P];
	}s.clear();
	for(int i=(int)op.size()-1; i>=0; i--){
		int typ = op[i].first;
		int l = op[i].second;
		if(typ == false){
			s.push_back(l);
		}else {
			i -= l;
		}
	}
	reverse(s.begin(), s.end());
	completed = true;
	return s[P];
}

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