Submission #234081

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
234081	2020-05-22T23:45:11 Z	hugo_pm	Editor (BOI15_edi)	C++17	100 / 100	111 ms	17400 KB

edi

#include <algorithm>
#include <cassert>
#include <iostream>
#include <numeric>
#include <vector>
using namespace std;
using ll = long long;

using PQ = vector<int>; 
const int maxElem = 3e5 + 5;
PQ hidden[maxElem];
int level[maxElem];
int lastEdit[maxElem];
int parent[maxElem];
int nbElem;

bool comp(const int &a, const int &b) {
	return level[a] < level[b];
}

void merge(PQ &dest, PQ &eaten) {
	if (dest.size() < eaten.size()) swap(dest, eaten); 
	if (dest.size() < 4U*eaten.size()) {
		dest.insert(dest.end(), eaten.begin(), eaten.end());
		make_heap(dest.begin(), dest.end(), comp);
		return;
	}
	for (int x : eaten) {
		dest.push_back(x);
		push_heap(dest.begin(), dest.end(), comp);
	}
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	
	cin >> nbElem;	
	for (int iElem = 1; iElem <= nbElem; ++iElem) {
		cin >> lastEdit[iElem];
		level[iElem] = max(0, -lastEdit[iElem]);
	}

	PQ cur;
	for (int iElem = nbElem; iElem >= 1; --iElem) {
		PQ nxt;
		while (!cur.empty() && level[cur.front()] > level[iElem]) {
			parent[cur.front()] = iElem-1;
			merge(nxt, hidden[cur.front()]);
			pop_heap(cur.begin(), cur.end(), comp);
			cur.pop_back();
		}
		nxt.push_back(iElem);
		push_heap(nxt.begin(), nxt.end(), comp);
		merge(hidden[iElem], cur);
		cur.swap(nxt);
	}

	for (int iElem = 1; iElem <= nbElem; ++iElem) {
		if (level[iElem] > 0) {
			lastEdit[iElem] = lastEdit[parent[iElem]];
		}
		cout << lastEdit[iElem] << "\n";
	}
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	10 ms	7552 KB	Output is correct
3	Correct	8 ms	7424 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	10 ms	7552 KB	Output is correct
6	Correct	8 ms	7424 KB	Output is correct
7	Correct	9 ms	7552 KB	Output is correct
8	Correct	8 ms	7424 KB	Output is correct
9	Correct	9 ms	7552 KB	Output is correct

Subtask #2

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	97 ms	15480 KB	Output is correct
2	Correct	92 ms	15480 KB	Output is correct

Subtask #3

28.0 / 28.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	53 ms	12280 KB	Output is correct
2	Correct	58 ms	13176 KB	Output is correct
3	Correct	101 ms	11288 KB	Output is correct
4	Correct	91 ms	15480 KB	Output is correct
5	Correct	99 ms	15864 KB	Output is correct
6	Correct	67 ms	12272 KB	Output is correct

Subtask #4

37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	10 ms	7552 KB	Output is correct
3	Correct	8 ms	7424 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	10 ms	7552 KB	Output is correct
6	Correct	8 ms	7424 KB	Output is correct
7	Correct	9 ms	7552 KB	Output is correct
8	Correct	8 ms	7424 KB	Output is correct
9	Correct	9 ms	7552 KB	Output is correct
10	Correct	97 ms	15480 KB	Output is correct
11	Correct	92 ms	15480 KB	Output is correct
12	Correct	53 ms	12280 KB	Output is correct
13	Correct	58 ms	13176 KB	Output is correct
14	Correct	101 ms	11288 KB	Output is correct
15	Correct	91 ms	15480 KB	Output is correct
16	Correct	99 ms	15864 KB	Output is correct
17	Correct	67 ms	12272 KB	Output is correct
18	Correct	98 ms	17400 KB	Output is correct
19	Correct	89 ms	17272 KB	Output is correct
20	Correct	111 ms	12012 KB	Output is correct
21	Correct	94 ms	15352 KB	Output is correct
22	Correct	102 ms	15808 KB	Output is correct