QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#473068#5109. Spider WalkkarunaWA 399ms18432kbC++202.3kb2024-07-11 21:34:262024-07-11 21:34:26

Judging History

你现在查看的是最新测评结果

  • [2024-07-11 21:34:26]
  • 评测
  • 测评结果:WA
  • 用时:399ms
  • 内存:18432kb
  • [2024-07-11 21:34:26]
  • 提交

answer

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#define ff first
#define ss second
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

int main() {
	cin.tie(0); ios_base::sync_with_stdio(0);

	int n, m, s;
	cin >> n >> m >> s;
	--s;

	pii c[m];
	for (auto &[x, y] : c) cin >> x >> y, --y;
	sort(c, c + m);

	int a[n] = {};
	for (int i = 0; i < n; i++) a[i] = 1e9;
	for (int i = 0; i < n; i++) {
		a[(s + i) % n] = min(a[(s + i) % n], i);
		a[(s + n - i) % n] = min(a[(s + n - i) % n], i);
	}
	
	int b[n] = {};
	for (int i = 0; i < n; i++) {
		b[i] = a[(i + 1) % n] - a[i];
	}

	set<int> S[3];
	for (int i = 0; i < n; i++) S[b[i] + 1].insert(i);

	for (int i = m; i > 0; i--) {
		int p = c[i - 1].ss;

		if (s == p) s = (p + 1) % n;
		else if (s == (p + 1) % n) s = p;

		if (b[p] == 0) continue;
		if (b[p] == 1) {
			int pos = 1e9;
			for (int t : {0, 1}) {
				if (S[t].empty()) continue;
				auto it = S[t].lower_bound(p);
				int k = it == S[t].end() ? n + *S[t].begin() : *it;

				pos = min(pos, k);
			}
			pos %= n;

			S[b[pos] + 1].erase(pos);
			b[pos] += 1;
			S[b[pos] + 1].insert(pos);

			int q = (p + n - 1) % n;
			if (b[q] == 1) {
				S[b[p] + 1].erase(p);
				b[p] -= 1;
				S[b[p] + 1].insert(p);
			}
			else {
				S[b[q] + 1].erase(q);
				b[q] += 1;
				S[b[q] + 1].insert(q);
				
				S[b[p] + 1].erase(p);
				b[p] -= 2;
				S[b[p] + 1].insert(p);
			}
		}
		else {
			int pos = -1e9;
			for (int t : {1, 2}) {
				if (S[t].empty()) continue;
				auto it = S[t].upper_bound(p);
				int k = it == S[t].begin() ? *prev(S[t].end()) - n : *prev(it);

				pos = max(pos, k);
			}
			pos = (n + pos % n) % n;

			S[b[pos] + 1].erase(pos);
			b[pos] -= 1;
			S[b[pos] + 1].insert(pos);

			int q = (p + 1) % n;
			if (b[q] == -1) {
				S[b[p] + 1].erase(p);
				b[p] += 1;
				S[b[p] + 1].erase(p);
			}
			else {
				S[b[q] + 1].erase(q);
				b[q] -= 1;
				S[b[q] + 1].insert(q);

				S[b[p] + 1].erase(p);
				b[p] += 2;
				S[b[p] + 1].insert(p);
			}
		}
	}

	a[s] = 0;
	for (int i = 0; i < n; i++) {
		a[(s + i + 1) % n] = a[(s + i) % n] + b[(s + i) % n];
	}

	for (int i = 0; i < n; i++) {
		cout << a[i] << '\n';
	}
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 371ms
memory: 18428kb

input:

200000 500000 116205
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50...

output:

2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

result:

ok 200000 lines

Test #2:

score: -100
Wrong Answer
time: 399ms
memory: 18432kb

input:

200000 500000 200000
1 148896
2 178903
3 36800
4 98361
5 79634
6 29266
7 51632
8 166082
9 66246
10 145043
11 41644
12 81858
13 87530
14 199625
15 127160
16 49786
17 181673
18 48403
19 30274
20 101455
21 105100
22 52149
23 22810
24 79308
25 191579
26 96365
27 154697
28 45255
29 64965
30 192604
31 330...

output:

1
0
1
1
2
2
3
3
4
5
6
7
8
8
9
10
11
12
12
11
12
13
14
15
16
17
18
17
18
19
20
21
21
22
23
24
25
26
27
28
27
28
28
29
30
31
31
32
32
33
34
35
36
37
38
39
40
41
42
42
43
44
45
46
47
48
49
50
51
52
52
53
54
55
56
57
58
59
59
60
61
62
61
62
63
64
65
66
66
67
67
68
68
69
70
70
71
72
73
74
75
76
76
77
78
...

result:

wrong answer 73258th lines differ - expected: '72426', found: '72424'