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Submission #799873

# Submission time Handle Problem Language Result Execution time Memory
799873 2023-08-01T07:24:07 Z LittleCube Toy Train (IOI17_train) C++17
100 / 100
 762 ms 1692 KB 
#include "train.h"
#include <bits/stdc++.h>
using namespace std;

int n, m, dead[5000];
vector<int> E[5000], R[5000];

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v)
{
	n = a.size(), m = u.size();
	vector<int> ans(n, 1);
	while (1)
	{
		for (int i = 0; i < n; i++)
			E[i].clear(), R[i].clear();
		for (int i = 0; i < m; i++)
			if (!dead[u[i]] && !dead[v[i]])
			{
				E[u[i]].emplace_back(v[i]);
				R[v[i]].emplace_back(u[i]);
			}

		vector<int> req(n, 0), vis(n, 0);
		for (int i = 0; i < n; i++)
			if (!dead[i])
			{
				if(r[i])
					req[i] = 0;
				else if (a[i])
					req[i] = 1;
				else
					req[i] = E[i].size();
			}

		queue<int> q;
		for (int i = 0; i < n; i++)
			if (!dead[i] && r[i])
				q.emplace(i);
			

		while (!q.empty())
		{
			int i = q.front();
			vis[i] = 1;
			q.pop();
			for (auto j : R[i])
				if(--req[j] == 0)
					q.emplace(j);
		}

		for (int i = 0; i < n; i++)
			if (!dead[i])
			{
				if(!vis[i])
					req[i] = 0;
				else if (a[i])
					req[i] = E[i].size();
				else
					req[i] = 1;
			}
		for (int i = 0; i < n; i++)
			if(!dead[i] && !vis[i])
				q.emplace(i);
		if(q.empty())
			break;
		while (!q.empty())
		{
			int i = q.front();
			ans[i] = 0, dead[i] = 1;
			q.pop();
			for (auto j : R[i])
				if(--req[j] == 0)
					q.emplace(j);
		}
	}
	return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1108 KB Output is correct
2 Correct 5 ms 1108 KB Output is correct
3 Correct 4 ms 1108 KB Output is correct
4 Correct 4 ms 1108 KB Output is correct
5 Correct 4 ms 1200 KB Output is correct
6 Correct 4 ms 1108 KB Output is correct
7 Correct 3 ms 1108 KB Output is correct
8 Correct 4 ms 1108 KB Output is correct
9 Correct 6 ms 1108 KB Output is correct
10 Correct 4 ms 1108 KB Output is correct
11 Correct 3 ms 1108 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 0 ms 468 KB Output is correct
5 Correct 1 ms 544 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 520 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 544 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 548 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 1692 KB Output is correct
2 Correct 257 ms 1672 KB Output is correct
3 Correct 370 ms 1656 KB Output is correct
4 Correct 9 ms 1620 KB Output is correct
5 Correct 7 ms 1620 KB Output is correct
6 Correct 7 ms 1620 KB Output is correct
7 Correct 6 ms 1576 KB Output is correct
8 Correct 6 ms 1556 KB Output is correct
9 Correct 8 ms 1540 KB Output is correct
10 Correct 8 ms 1580 KB Output is correct
11 Correct 7 ms 1552 KB Output is correct
12 Correct 5 ms 1452 KB Output is correct
13 Correct 6 ms 1620 KB Output is correct
14 Correct 7 ms 1620 KB Output is correct
15 Correct 6 ms 1576 KB Output is correct
16 Correct 6 ms 1636 KB Output is correct
17 Correct 9 ms 1620 KB Output is correct
18 Correct 532 ms 1276 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1364 KB Output is correct
2 Correct 6 ms 1456 KB Output is correct
3 Correct 6 ms 1620 KB Output is correct
4 Correct 6 ms 1620 KB Output is correct
5 Correct 6 ms 1580 KB Output is correct
6 Correct 8 ms 1620 KB Output is correct
7 Correct 7 ms 1516 KB Output is correct
8 Correct 6 ms 1492 KB Output is correct
9 Correct 6 ms 1492 KB Output is correct
10 Correct 6 ms 1620 KB Output is correct
11 Correct 9 ms 1580 KB Output is correct
12 Correct 9 ms 1620 KB Output is correct
13 Correct 6 ms 1580 KB Output is correct
14 Correct 6 ms 1492 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1584 KB Output is correct
2 Correct 9 ms 1580 KB Output is correct
3 Correct 6 ms 1620 KB Output is correct
4 Correct 5 ms 1512 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 3 ms 1068 KB Output is correct
7 Correct 4 ms 1236 KB Output is correct
8 Correct 4 ms 1200 KB Output is correct
9 Correct 4 ms 1196 KB Output is correct
10 Correct 2 ms 744 KB Output is correct
11 Correct 4 ms 1108 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1108 KB Output is correct
2 Correct 5 ms 1108 KB Output is correct
3 Correct 4 ms 1108 KB Output is correct
4 Correct 4 ms 1108 KB Output is correct
5 Correct 4 ms 1200 KB Output is correct
6 Correct 4 ms 1108 KB Output is correct
7 Correct 3 ms 1108 KB Output is correct
8 Correct 4 ms 1108 KB Output is correct
9 Correct 6 ms 1108 KB Output is correct
10 Correct 4 ms 1108 KB Output is correct
11 Correct 3 ms 1108 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 0 ms 468 KB Output is correct
16 Correct 1 ms 544 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 520 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 544 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 1 ms 548 KB Output is correct
32 Correct 137 ms 1692 KB Output is correct
33 Correct 257 ms 1672 KB Output is correct
34 Correct 370 ms 1656 KB Output is correct
35 Correct 9 ms 1620 KB Output is correct
36 Correct 7 ms 1620 KB Output is correct
37 Correct 7 ms 1620 KB Output is correct
38 Correct 6 ms 1576 KB Output is correct
39 Correct 6 ms 1556 KB Output is correct
40 Correct 8 ms 1540 KB Output is correct
41 Correct 8 ms 1580 KB Output is correct
42 Correct 7 ms 1552 KB Output is correct
43 Correct 5 ms 1452 KB Output is correct
44 Correct 6 ms 1620 KB Output is correct
45 Correct 7 ms 1620 KB Output is correct
46 Correct 6 ms 1576 KB Output is correct
47 Correct 6 ms 1636 KB Output is correct
48 Correct 9 ms 1620 KB Output is correct
49 Correct 532 ms 1276 KB Output is correct
50 Correct 5 ms 1364 KB Output is correct
51 Correct 6 ms 1456 KB Output is correct
52 Correct 6 ms 1620 KB Output is correct
53 Correct 6 ms 1620 KB Output is correct
54 Correct 6 ms 1580 KB Output is correct
55 Correct 8 ms 1620 KB Output is correct
56 Correct 7 ms 1516 KB Output is correct
57 Correct 6 ms 1492 KB Output is correct
58 Correct 6 ms 1492 KB Output is correct
59 Correct 6 ms 1620 KB Output is correct
60 Correct 9 ms 1580 KB Output is correct
61 Correct 9 ms 1620 KB Output is correct
62 Correct 6 ms 1580 KB Output is correct
63 Correct 6 ms 1492 KB Output is correct
64 Correct 10 ms 1584 KB Output is correct
65 Correct 9 ms 1580 KB Output is correct
66 Correct 6 ms 1620 KB Output is correct
67 Correct 5 ms 1512 KB Output is correct
68 Correct 1 ms 596 KB Output is correct
69 Correct 3 ms 1068 KB Output is correct
70 Correct 4 ms 1236 KB Output is correct
71 Correct 4 ms 1200 KB Output is correct
72 Correct 4 ms 1196 KB Output is correct
73 Correct 2 ms 744 KB Output is correct
74 Correct 4 ms 1108 KB Output is correct
75 Correct 177 ms 1620 KB Output is correct
76 Correct 295 ms 1660 KB Output is correct
77 Correct 381 ms 1656 KB Output is correct
78 Correct 374 ms 1656 KB Output is correct
79 Correct 379 ms 1656 KB Output is correct
80 Correct 6 ms 1632 KB Output is correct
81 Correct 6 ms 1580 KB Output is correct
82 Correct 9 ms 1652 KB Output is correct
83 Correct 7 ms 1584 KB Output is correct
84 Correct 13 ms 1580 KB Output is correct
85 Correct 9 ms 1576 KB Output is correct
86 Correct 8 ms 1580 KB Output is correct
87 Correct 7 ms 1556 KB Output is correct
88 Correct 11 ms 1612 KB Output is correct
89 Correct 7 ms 1580 KB Output is correct
90 Correct 14 ms 1640 KB Output is correct
91 Correct 14 ms 1580 KB Output is correct
92 Correct 27 ms 1620 KB Output is correct
93 Correct 25 ms 1632 KB Output is correct
94 Correct 26 ms 1612 KB Output is correct
95 Correct 28 ms 1620 KB Output is correct
96 Correct 85 ms 1532 KB Output is correct
97 Correct 505 ms 1624 KB Output is correct
98 Correct 706 ms 1616 KB Output is correct
99 Correct 762 ms 1568 KB Output is correct
100 Correct 501 ms 1264 KB Output is correct