답안 #767669

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
767669	2023-06-27T03:09:33 Z	SanguineChameleon	고대 책들 (IOI17_books)	C++17	22 / 100	2000 ms	15416 KB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;

const int maxn = 1e6 + 20;
int par[maxn];
int depth[maxn];
bool flag[maxn];
bool skip[maxn];
int nxt[maxn];

int root(int u) {
	if (par[u] == -1) {
		return u;
	}
	else {
		return par[u] = root(par[u]);
	}
}

bool update(int u, int v) {
	int ru = root(u);
	int rv = root(v);
	if (ru == rv) {
		return false;
	}
	if (depth[ru] > depth[rv]) {
		swap(ru, rv);
	}
	par[ru] = rv;
	if (depth[ru] == depth[rv]) {
		depth[rv]++;
	}
	return true;
}

long long minimum_walk(vector<int> a, int s) {
	int n = a.size();
	for (int i = 0; i < n; i++) {
		par[i] = -1;
	}
	long long res = 0;
	for (int i = 0; i < n; i++) {
		res += abs(a[i] - i);
		if (i != s && a[i] == i) {
			skip[i] = true;
		}
		for (int j = min(a[i], i); j < max(a[i], i); j++) {
			update(j, j + 1);
		}
	}
	nxt[n - 1] = -1;
	for (int i = n - 2; i >= 0; i--) {
		if (!skip[i + 1]) {
			nxt[i] = i + 1;
		}
		else {
			nxt[i] = nxt[i + 1];
		}
	}
	vector<pair<int, pair<int, int>>> edges;
	for (int i = 0; i < n - 1; i++) {
		if (!skip[i] && nxt[i] != -1) {
			edges.emplace_back(nxt[i] - i, make_pair(i, nxt[i]));
		}
	}
	sort(edges.begin(), edges.end());
	for (auto e: edges) {
		if (update(e.second.first, e.second.second)) {
			res += e.first * 2;
		}
	}
	return res;
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	308 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	304 KB	Output is correct
18	Correct	1 ms	312 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	308 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	304 KB	Output is correct
18	Correct	1 ms	312 KB	Output is correct
19	Correct	1 ms	308 KB	Output is correct
20	Correct	2 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	304 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct

Subtask #3
0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	308 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	304 KB	Output is correct
18	Correct	1 ms	312 KB	Output is correct
19	Correct	1 ms	308 KB	Output is correct
20	Correct	2 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	304 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Execution timed out	2076 ms	15416 KB	Time limit exceeded
31	Halted	0 ms	0 KB	-

Subtask #4
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	0 ms	340 KB	3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	304 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	312 KB	Output is correct
13	Correct	1 ms	308 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	308 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	304 KB	Output is correct
18	Correct	1 ms	312 KB	Output is correct
19	Correct	1 ms	308 KB	Output is correct
20	Correct	2 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	304 KB	Output is correct
23	Correct	1 ms	340 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	1 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Execution timed out	2076 ms	15416 KB	Time limit exceeded
31	Halted	0 ms	0 KB	-

답안 #767669

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 28.0

Subtask #4 0 / 20.0

Subtask #5 0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 28.0

Subtask #4
0 / 20.0

Subtask #5
0 / 30.0