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Submission #908673

# Submission time Handle Problem Language Result Execution time Memory
908673 2024-01-16T16:21:54 Z mickey080929 Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 647 ms 245108 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

using namespace std;

const int B = 300;

int dp[100010][B+1];
int st[100010][B+1];
vector<int> adj[100010];
int idx[100010];
int chk[100010];
int dp2[100010];

int main() {
	int n, m, q;
	cin >> n >> m >> q;
	for (int i=0; i<m; i++) {
		int u, v;
		cin >> u >> v;
		adj[v].push_back(u);
	}
	memset(dp, -1, sizeof(dp));
	for (int i=1; i<=n; i++) {
		for (auto &j : adj[i]) {
			idx[j] = 0;
		}
		for (int j=0; j<B; j++) {
			int mx = -1, pv = -1;
			for (auto &k : adj[i]) {
				while (chk[st[k][idx[k]]]) idx[k] ++;
				if (mx < dp[k][idx[k]]) {
					mx = dp[k][idx[k]];
					pv = k;
				}
			}
			if (pv == -1) {
				dp[i][j] = 0;
				st[i][j] = i;
				break;
			}
			dp[i][j] = mx + 1;
			st[i][j] = st[pv][idx[pv]];
			chk[st[i][j]] = 1;
			idx[pv] ++;
		}
		for (int j=0; j<B; j++) {
			chk[st[i][j]] = 0;
		}
	}
	while (q --) {
		int x;
		cin >> x;
		int k;
		cin >> k;
		vector<int> num(k);
		for (int i=0; i<k; i++) {
			cin >> num[i];
			chk[num[i]] = 1;
		}
		if (k < B) {
			for (int i=0; i<B; i++) {
				if (!chk[st[x][i]]) {
					cout << dp[x][i] << '\n';
					break;
				}
			}
		}
		else {
			for (int i=1; i<=x; i++) {
				if (!chk[i]) dp2[i] = 0;
				else dp2[i] = -1;
				for (auto &j : adj[i]) {
					if (dp2[j] != -1)
						dp2[i] = max(dp2[i], dp2[j] + 1);
				}
			}
			cout << dp2[x] << '\n';
		}
		for (int i=0; i<k; i++) {
			chk[num[i]] = 0;
		}
	}
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 122192 KB Output is correct
2 Correct 21 ms 122456 KB Output is correct
3 Correct 23 ms 122460 KB Output is correct
4 Correct 21 ms 122404 KB Output is correct
5 Correct 23 ms 124452 KB Output is correct
6 Correct 24 ms 122712 KB Output is correct
7 Correct 23 ms 122768 KB Output is correct
8 Correct 24 ms 124504 KB Output is correct
9 Correct 24 ms 124452 KB Output is correct
10 Correct 24 ms 124328 KB Output is correct
11 Correct 23 ms 124508 KB Output is correct
12 Correct 23 ms 124500 KB Output is correct
13 Correct 24 ms 124500 KB Output is correct
14 Correct 23 ms 124508 KB Output is correct
15 Correct 23 ms 122708 KB Output is correct
16 Correct 23 ms 122704 KB Output is correct
17 Correct 23 ms 124500 KB Output is correct
18 Correct 25 ms 124516 KB Output is correct
19 Correct 23 ms 124508 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 122192 KB Output is correct
2 Correct 21 ms 122456 KB Output is correct
3 Correct 23 ms 122460 KB Output is correct
4 Correct 21 ms 122404 KB Output is correct
5 Correct 23 ms 124452 KB Output is correct
6 Correct 24 ms 122712 KB Output is correct
7 Correct 23 ms 122768 KB Output is correct
8 Correct 24 ms 124504 KB Output is correct
9 Correct 24 ms 124452 KB Output is correct
10 Correct 24 ms 124328 KB Output is correct
11 Correct 23 ms 124508 KB Output is correct
12 Correct 23 ms 124500 KB Output is correct
13 Correct 24 ms 124500 KB Output is correct
14 Correct 23 ms 124508 KB Output is correct
15 Correct 23 ms 122708 KB Output is correct
16 Correct 23 ms 122704 KB Output is correct
17 Correct 23 ms 124500 KB Output is correct
18 Correct 25 ms 124516 KB Output is correct
19 Correct 23 ms 124508 KB Output is correct
20 Correct 257 ms 126804 KB Output is correct
21 Correct 252 ms 127172 KB Output is correct
22 Correct 251 ms 126828 KB Output is correct
23 Correct 276 ms 126968 KB Output is correct
24 Correct 469 ms 244304 KB Output is correct
25 Correct 482 ms 244368 KB Output is correct
26 Correct 466 ms 244304 KB Output is correct
27 Correct 433 ms 244944 KB Output is correct
28 Correct 415 ms 244768 KB Output is correct
29 Correct 418 ms 244552 KB Output is correct
30 Correct 416 ms 244868 KB Output is correct
31 Correct 453 ms 244620 KB Output is correct
32 Correct 423 ms 244760 KB Output is correct
33 Correct 365 ms 244052 KB Output is correct
34 Correct 346 ms 244352 KB Output is correct
35 Correct 356 ms 244304 KB Output is correct
36 Correct 405 ms 244236 KB Output is correct
37 Correct 429 ms 244064 KB Output is correct
38 Correct 395 ms 244208 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 122192 KB Output is correct
2 Correct 21 ms 122456 KB Output is correct
3 Correct 23 ms 122460 KB Output is correct
4 Correct 21 ms 122404 KB Output is correct
5 Correct 23 ms 124452 KB Output is correct
6 Correct 24 ms 122712 KB Output is correct
7 Correct 23 ms 122768 KB Output is correct
8 Correct 24 ms 124504 KB Output is correct
9 Correct 24 ms 124452 KB Output is correct
10 Correct 24 ms 124328 KB Output is correct
11 Correct 23 ms 124508 KB Output is correct
12 Correct 23 ms 124500 KB Output is correct
13 Correct 24 ms 124500 KB Output is correct
14 Correct 23 ms 124508 KB Output is correct
15 Correct 23 ms 122708 KB Output is correct
16 Correct 23 ms 122704 KB Output is correct
17 Correct 23 ms 124500 KB Output is correct
18 Correct 25 ms 124516 KB Output is correct
19 Correct 23 ms 124508 KB Output is correct
20 Correct 257 ms 126804 KB Output is correct
21 Correct 252 ms 127172 KB Output is correct
22 Correct 251 ms 126828 KB Output is correct
23 Correct 276 ms 126968 KB Output is correct
24 Correct 469 ms 244304 KB Output is correct
25 Correct 482 ms 244368 KB Output is correct
26 Correct 466 ms 244304 KB Output is correct
27 Correct 433 ms 244944 KB Output is correct
28 Correct 415 ms 244768 KB Output is correct
29 Correct 418 ms 244552 KB Output is correct
30 Correct 416 ms 244868 KB Output is correct
31 Correct 453 ms 244620 KB Output is correct
32 Correct 423 ms 244760 KB Output is correct
33 Correct 365 ms 244052 KB Output is correct
34 Correct 346 ms 244352 KB Output is correct
35 Correct 356 ms 244304 KB Output is correct
36 Correct 405 ms 244236 KB Output is correct
37 Correct 429 ms 244064 KB Output is correct
38 Correct 395 ms 244208 KB Output is correct
39 Correct 641 ms 244788 KB Output is correct
40 Correct 481 ms 243792 KB Output is correct
41 Correct 461 ms 243792 KB Output is correct
42 Correct 530 ms 244112 KB Output is correct
43 Correct 473 ms 244092 KB Output is correct
44 Correct 431 ms 127856 KB Output is correct
45 Correct 283 ms 127040 KB Output is correct
46 Correct 268 ms 126880 KB Output is correct
47 Correct 288 ms 126544 KB Output is correct
48 Correct 260 ms 126772 KB Output is correct
49 Correct 598 ms 244968 KB Output is correct
50 Correct 421 ms 244048 KB Output is correct
51 Correct 430 ms 127292 KB Output is correct
52 Correct 274 ms 126800 KB Output is correct
53 Correct 573 ms 244256 KB Output is correct
54 Correct 638 ms 244352 KB Output is correct
55 Correct 396 ms 243648 KB Output is correct
56 Correct 436 ms 243808 KB Output is correct
57 Correct 417 ms 127316 KB Output is correct
58 Correct 414 ms 127392 KB Output is correct
59 Correct 275 ms 126804 KB Output is correct
60 Correct 283 ms 126804 KB Output is correct
61 Correct 490 ms 244308 KB Output is correct
62 Correct 447 ms 243692 KB Output is correct
63 Correct 500 ms 244060 KB Output is correct
64 Correct 582 ms 244156 KB Output is correct
65 Correct 577 ms 243968 KB Output is correct
66 Correct 596 ms 244104 KB Output is correct
67 Correct 427 ms 244060 KB Output is correct
68 Correct 399 ms 243900 KB Output is correct
69 Correct 438 ms 243696 KB Output is correct
70 Correct 436 ms 244348 KB Output is correct
71 Correct 433 ms 243792 KB Output is correct
72 Correct 455 ms 244216 KB Output is correct
73 Correct 425 ms 244124 KB Output is correct
74 Correct 413 ms 243796 KB Output is correct
75 Correct 447 ms 243712 KB Output is correct
76 Correct 603 ms 245108 KB Output is correct
77 Correct 416 ms 244256 KB Output is correct
78 Correct 411 ms 244560 KB Output is correct
79 Correct 427 ms 127768 KB Output is correct
80 Correct 275 ms 126920 KB Output is correct
81 Correct 267 ms 126524 KB Output is correct
82 Correct 606 ms 245104 KB Output is correct
83 Correct 647 ms 244824 KB Output is correct
84 Correct 423 ms 244308 KB Output is correct
85 Correct 453 ms 244304 KB Output is correct
86 Correct 425 ms 244560 KB Output is correct
87 Correct 463 ms 244660 KB Output is correct
88 Correct 425 ms 127420 KB Output is correct
89 Correct 413 ms 127568 KB Output is correct
90 Correct 265 ms 127044 KB Output is correct
91 Correct 271 ms 126888 KB Output is correct
92 Correct 259 ms 126720 KB Output is correct
93 Correct 251 ms 126544 KB Output is correct
94 Correct 551 ms 244436 KB Output is correct
95 Correct 521 ms 244416 KB Output is correct
96 Correct 364 ms 243912 KB Output is correct
97 Correct 356 ms 243872 KB Output is correct
98 Correct 373 ms 244232 KB Output is correct
99 Correct 348 ms 244304 KB Output is correct
100 Correct 439 ms 127652 KB Output is correct
101 Correct 463 ms 127700 KB Output is correct
102 Correct 293 ms 126800 KB Output is correct
103 Correct 306 ms 127056 KB Output is correct
104 Correct 275 ms 126544 KB Output is correct
105 Correct 289 ms 126808 KB Output is correct
106 Correct 563 ms 244560 KB Output is correct
107 Correct 605 ms 244524 KB Output is correct
108 Correct 430 ms 244028 KB Output is correct
109 Correct 421 ms 243944 KB Output is correct
110 Correct 410 ms 244164 KB Output is correct
111 Correct 443 ms 244052 KB Output is correct
112 Correct 427 ms 127520 KB Output is correct
113 Correct 416 ms 127456 KB Output is correct
114 Correct 267 ms 127004 KB Output is correct
115 Correct 267 ms 127020 KB Output is correct
116 Correct 262 ms 126804 KB Output is correct
117 Correct 257 ms 126692 KB Output is correct
118 Correct 429 ms 244200 KB Output is correct
119 Correct 412 ms 243536 KB Output is correct
120 Correct 442 ms 243616 KB Output is correct
121 Correct 432 ms 244200 KB Output is correct
122 Correct 413 ms 243540 KB Output is correct
123 Correct 443 ms 243796 KB Output is correct
124 Correct 406 ms 244052 KB Output is correct
125 Correct 411 ms 243584 KB Output is correct
126 Correct 437 ms 243536 KB Output is correct