답안 #76872

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
76872	2018-09-18T19:52:43 Z	FiloSanza	크레이피쉬 글쓰는 기계 (IOI12_scrivener)	C++14	100 / 100	853 ms	208136 KB

scrivener

#include <bits/stdc++.h>

using namespace std;

const int MAX_LOG = 20;
const int MAX_SIZE = 26;
struct Node{
	char val;
	int depth;
	map<char, Node*> figli;
	Node* father[MAX_LOG];

	Node(char val, int depth) : val(val), depth(depth){
		for(int i=0; i<MAX_LOG; i++)
			father[i] = nullptr;
	}
	Node(char val, int depth, Node* N) : val(val), depth(depth){
		father[0] = N;
		for(int i=1; i<MAX_LOG; i++)
			if(father[i-1] != nullptr)
				father[i] = father[i-1]->father[i-1];
			else
				father[i] = nullptr;
	}
};

Node* root;
vector<Node*> version;

void Init() {
	root = new Node('\0', -1);
	version.push_back(root);
}

void TypeLetter(char L) {
	//aggiungi la lettera come nuova versione
	if(version.back()->figli.count(L-'a') == 0){
		version.back()->figli[L-'a'] = new Node(L, version.back()->depth+1, version.back());
	}
	version.push_back(version.back()->figli[L-'a']);
}

void UndoCommands(int U) {
	version.push_back(version[version.size()-U-1]);
}

char GetLetter(int P) {
	Node* node = version.back();
	int L = version.back()->depth - P;
	for(int i=0; (1<<i)<=L; i++)if(L&(1<<i))
		node = node->father[i];
	return node->val;
}

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	440 KB	Output is correct
4	Correct	2 ms	488 KB	Output is correct
5	Correct	2 ms	540 KB	Output is correct
6	Correct	2 ms	552 KB	Output is correct
7	Correct	2 ms	552 KB	Output is correct
8	Correct	2 ms	552 KB	Output is correct
9	Correct	2 ms	664 KB	Output is correct
10	Correct	2 ms	664 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	664 KB	Output is correct
2	Correct	2 ms	664 KB	Output is correct
3	Correct	2 ms	664 KB	Output is correct
4	Correct	2 ms	664 KB	Output is correct
5	Correct	2 ms	664 KB	Output is correct
6	Correct	2 ms	664 KB	Output is correct
7	Correct	2 ms	664 KB	Output is correct
8	Correct	2 ms	664 KB	Output is correct
9	Correct	2 ms	664 KB	Output is correct
10	Correct	2 ms	664 KB	Output is correct

Subtask #3

22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1024 KB	Output is correct
2	Correct	3 ms	1024 KB	Output is correct
3	Correct	3 ms	1048 KB	Output is correct
4	Correct	4 ms	1460 KB	Output is correct
5	Correct	4 ms	1460 KB	Output is correct
6	Correct	4 ms	1768 KB	Output is correct
7	Correct	4 ms	1768 KB	Output is correct
8	Correct	4 ms	1768 KB	Output is correct
9	Correct	4 ms	1768 KB	Output is correct
10	Correct	3 ms	1768 KB	Output is correct

Subtask #4

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	712 ms	170500 KB	Output is correct
2	Correct	736 ms	187336 KB	Output is correct
3	Correct	599 ms	187336 KB	Output is correct
4	Correct	559 ms	187336 KB	Output is correct
5	Correct	605 ms	187336 KB	Output is correct
6	Correct	620 ms	203024 KB	Output is correct
7	Correct	578 ms	203024 KB	Output is correct
8	Correct	681 ms	203024 KB	Output is correct
9	Correct	853 ms	208136 KB	Output is correct
10	Correct	366 ms	208136 KB	Output is correct

Subtask #5

40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	728 ms	208136 KB	Output is correct
2	Correct	778 ms	208136 KB	Output is correct
3	Correct	588 ms	208136 KB	Output is correct
4	Correct	543 ms	208136 KB	Output is correct
5	Correct	603 ms	208136 KB	Output is correct
6	Correct	543 ms	208136 KB	Output is correct
7	Correct	550 ms	208136 KB	Output is correct
8	Correct	593 ms	208136 KB	Output is correct
9	Correct	805 ms	208136 KB	Output is correct
10	Correct	367 ms	208136 KB	Output is correct