oj.uz

Submission #400395

# Submission time Handle Problem Language Result Execution time Memory
400395 2021-05-07T22:59:54 Z nikatamliani Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1398 ms 95172 KB 
#include <bits/stdc++.h>
using namespace std;
void maxi(int &x, int y) {
	if(x < y) x = y;
}
const int C = 100;
bool vis[100005];
void merge(vector<pair<int, int>> &a, const vector<pair<int, int>> &b) {
	vector<pair<int, int>> c;
	int n = (int)a.size(), m = (int)b.size();
	for(int i = 0, j = 0; i < n || j < m;) {
		if((int)c.size() == C) break;
		if(i < n && vis[a[i].second]) { ++i; continue; }
		if(j < m && vis[b[j].second]) { ++j; continue; }
		if(j == m || (i < n && a[i].first > b[j].first+1)) {
			c.push_back(a[i]);
			vis[a[i++].second] = 1;
		} else {
			c.push_back({b[j].first+1, b[j].second});
			vis[b[j++].second] = 1;
		}
	}
	for(const auto &p : c) vis[p.second] = 0;
	a = c;
}
int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	int n, m, q;
	cin >> n >> m >> q;
	vector<vector<int>> g(n+1);
	vector<vector<int>> r(n+1);
	for(int i = 1; i <= m; ++i) {
		int u, v; cin >> u >> v;
		g[u].push_back(v);
		r[v].push_back(u);
	}
	vector<int> dst(n+1);
	vector<vector<pair<int, int>>> list(n+1); 
	for(int i = 1; i <= n; ++i) {
		for(int x : r[i]) {
			merge(list[i], list[x]);
		}
		if((int)list[i].size() < C) list[i].push_back({0, i});
	}
	vector<bool> blocked(n+1);
	vector<int> dp(n+1);
	blocked[0] = 1;
	while(q--) {
		int t, x; cin >> t >> x;
		vector<int> v(x);
		for(int i = 0; i < x; ++i) {
			cin >> v[i]; 
			blocked[v[i]] = 1;
		}
		int ans = -1;
		if(x < C) {
			for(pair<int, int> p : list[t]) {
				if(!blocked[p.second]) {
					ans = p.first;
					break;
				}
			}
		} else {
			for(int i = 1; i <= t; ++i) {
				dp[i] = -1e6;
				if(!blocked[i]) {
					dp[i] = 0;
				}
				for(int x : r[i]) {
					maxi(dp[i], dp[x]+1);
				}
			}
			ans = dp[t];
		}
		if(ans < 0) ans = -1;
		cout << ans << '\n';
		for(int i : v) blocked[i] = 0;
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 5 ms 972 KB Output is correct
6 Correct 5 ms 972 KB Output is correct
7 Correct 4 ms 972 KB Output is correct
8 Correct 5 ms 1228 KB Output is correct
9 Correct 5 ms 1256 KB Output is correct
10 Correct 5 ms 1228 KB Output is correct
11 Correct 5 ms 1228 KB Output is correct
12 Correct 5 ms 1100 KB Output is correct
13 Correct 5 ms 1228 KB Output is correct
14 Correct 5 ms 844 KB Output is correct
15 Correct 4 ms 844 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 5 ms 1104 KB Output is correct
18 Correct 4 ms 972 KB Output is correct
19 Correct 5 ms 1100 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 5 ms 972 KB Output is correct
6 Correct 5 ms 972 KB Output is correct
7 Correct 4 ms 972 KB Output is correct
8 Correct 5 ms 1228 KB Output is correct
9 Correct 5 ms 1256 KB Output is correct
10 Correct 5 ms 1228 KB Output is correct
11 Correct 5 ms 1228 KB Output is correct
12 Correct 5 ms 1100 KB Output is correct
13 Correct 5 ms 1228 KB Output is correct
14 Correct 5 ms 844 KB Output is correct
15 Correct 4 ms 844 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 5 ms 1104 KB Output is correct
18 Correct 4 ms 972 KB Output is correct
19 Correct 5 ms 1100 KB Output is correct
20 Correct 363 ms 3576 KB Output is correct
21 Correct 376 ms 3560 KB Output is correct
22 Correct 362 ms 3452 KB Output is correct
23 Correct 369 ms 3528 KB Output is correct
24 Correct 529 ms 79048 KB Output is correct
25 Correct 572 ms 79012 KB Output is correct
26 Correct 576 ms 78824 KB Output is correct
27 Correct 530 ms 94788 KB Output is correct
28 Correct 520 ms 95072 KB Output is correct
29 Correct 528 ms 94788 KB Output is correct
30 Correct 505 ms 94104 KB Output is correct
31 Correct 542 ms 93316 KB Output is correct
32 Correct 508 ms 94148 KB Output is correct
33 Correct 436 ms 65928 KB Output is correct
34 Correct 423 ms 62056 KB Output is correct
35 Correct 433 ms 65584 KB Output is correct
36 Correct 495 ms 79940 KB Output is correct
37 Correct 495 ms 77492 KB Output is correct
38 Correct 489 ms 80024 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 5 ms 972 KB Output is correct
6 Correct 5 ms 972 KB Output is correct
7 Correct 4 ms 972 KB Output is correct
8 Correct 5 ms 1228 KB Output is correct
9 Correct 5 ms 1256 KB Output is correct
10 Correct 5 ms 1228 KB Output is correct
11 Correct 5 ms 1228 KB Output is correct
12 Correct 5 ms 1100 KB Output is correct
13 Correct 5 ms 1228 KB Output is correct
14 Correct 5 ms 844 KB Output is correct
15 Correct 4 ms 844 KB Output is correct
16 Correct 5 ms 972 KB Output is correct
17 Correct 5 ms 1104 KB Output is correct
18 Correct 4 ms 972 KB Output is correct
19 Correct 5 ms 1100 KB Output is correct
20 Correct 363 ms 3576 KB Output is correct
21 Correct 376 ms 3560 KB Output is correct
22 Correct 362 ms 3452 KB Output is correct
23 Correct 369 ms 3528 KB Output is correct
24 Correct 529 ms 79048 KB Output is correct
25 Correct 572 ms 79012 KB Output is correct
26 Correct 576 ms 78824 KB Output is correct
27 Correct 530 ms 94788 KB Output is correct
28 Correct 520 ms 95072 KB Output is correct
29 Correct 528 ms 94788 KB Output is correct
30 Correct 505 ms 94104 KB Output is correct
31 Correct 542 ms 93316 KB Output is correct
32 Correct 508 ms 94148 KB Output is correct
33 Correct 436 ms 65928 KB Output is correct
34 Correct 423 ms 62056 KB Output is correct
35 Correct 433 ms 65584 KB Output is correct
36 Correct 495 ms 79940 KB Output is correct
37 Correct 495 ms 77492 KB Output is correct
38 Correct 489 ms 80024 KB Output is correct
39 Correct 587 ms 78920 KB Output is correct
40 Correct 569 ms 78916 KB Output is correct
41 Correct 1357 ms 79244 KB Output is correct
42 Correct 724 ms 78920 KB Output is correct
43 Correct 535 ms 78456 KB Output is correct
44 Correct 404 ms 3948 KB Output is correct
45 Correct 371 ms 3536 KB Output is correct
46 Correct 443 ms 3584 KB Output is correct
47 Correct 383 ms 3524 KB Output is correct
48 Correct 369 ms 3472 KB Output is correct
49 Correct 566 ms 95136 KB Output is correct
50 Correct 1206 ms 94812 KB Output is correct
51 Correct 398 ms 4036 KB Output is correct
52 Correct 427 ms 3540 KB Output is correct
53 Correct 527 ms 79836 KB Output is correct
54 Correct 549 ms 77692 KB Output is correct
55 Correct 1304 ms 79512 KB Output is correct
56 Correct 1312 ms 77780 KB Output is correct
57 Correct 401 ms 3920 KB Output is correct
58 Correct 400 ms 3916 KB Output is correct
59 Correct 443 ms 3524 KB Output is correct
60 Correct 437 ms 3472 KB Output is correct
61 Correct 628 ms 94656 KB Output is correct
62 Correct 633 ms 79960 KB Output is correct
63 Correct 643 ms 77252 KB Output is correct
64 Correct 859 ms 94772 KB Output is correct
65 Correct 951 ms 79564 KB Output is correct
66 Correct 1008 ms 77756 KB Output is correct
67 Correct 1070 ms 94732 KB Output is correct
68 Correct 1327 ms 79888 KB Output is correct
69 Correct 1398 ms 77080 KB Output is correct
70 Correct 532 ms 94624 KB Output is correct
71 Correct 508 ms 79684 KB Output is correct
72 Correct 515 ms 77252 KB Output is correct
73 Correct 561 ms 94712 KB Output is correct
74 Correct 544 ms 79676 KB Output is correct
75 Correct 538 ms 77284 KB Output is correct
76 Correct 568 ms 95172 KB Output is correct
77 Correct 1059 ms 94788 KB Output is correct
78 Correct 520 ms 94708 KB Output is correct
79 Correct 395 ms 3912 KB Output is correct
80 Correct 419 ms 3588 KB Output is correct
81 Correct 357 ms 3540 KB Output is correct
82 Correct 567 ms 94468 KB Output is correct
83 Correct 588 ms 93372 KB Output is correct
84 Correct 1020 ms 94020 KB Output is correct
85 Correct 1087 ms 93120 KB Output is correct
86 Correct 528 ms 94180 KB Output is correct
87 Correct 554 ms 93124 KB Output is correct
88 Correct 396 ms 4036 KB Output is correct
89 Correct 400 ms 3828 KB Output is correct
90 Correct 441 ms 3528 KB Output is correct
91 Correct 446 ms 3524 KB Output is correct
92 Correct 364 ms 3548 KB Output is correct
93 Correct 366 ms 3684 KB Output is correct
94 Correct 480 ms 66100 KB Output is correct
95 Correct 459 ms 62136 KB Output is correct
96 Correct 1031 ms 65600 KB Output is correct
97 Correct 1055 ms 62640 KB Output is correct
98 Correct 459 ms 65876 KB Output is correct
99 Correct 426 ms 62160 KB Output is correct
100 Correct 404 ms 3908 KB Output is correct
101 Correct 406 ms 3892 KB Output is correct
102 Correct 423 ms 3752 KB Output is correct
103 Correct 431 ms 3536 KB Output is correct
104 Correct 367 ms 3524 KB Output is correct
105 Correct 369 ms 3460 KB Output is correct
106 Correct 540 ms 79940 KB Output is correct
107 Correct 553 ms 77768 KB Output is correct
108 Correct 1229 ms 79792 KB Output is correct
109 Correct 1287 ms 77380 KB Output is correct
110 Correct 504 ms 80016 KB Output is correct
111 Correct 515 ms 77580 KB Output is correct
112 Correct 408 ms 3908 KB Output is correct
113 Correct 413 ms 4112 KB Output is correct
114 Correct 435 ms 3548 KB Output is correct
115 Correct 440 ms 3524 KB Output is correct
116 Correct 364 ms 3524 KB Output is correct
117 Correct 366 ms 3540 KB Output is correct
118 Correct 520 ms 94732 KB Output is correct
119 Correct 485 ms 79820 KB Output is correct
120 Correct 500 ms 77248 KB Output is correct
121 Correct 519 ms 94660 KB Output is correct
122 Correct 496 ms 79596 KB Output is correct
123 Correct 507 ms 76996 KB Output is correct
124 Correct 516 ms 94584 KB Output is correct
125 Correct 500 ms 80072 KB Output is correct
126 Correct 497 ms 77248 KB Output is correct