oj.uz

Submission #417539

# Submission time Handle Problem Language Result Execution time Memory
417539 2021-06-03T21:32:57 Z ja_kingy Toy Train (IOI17_train) C++14
100 / 100
 985 ms 1856 KB 
#include "train.h"
#include <bits/stdc++.h>
using namespace std;

int n, used[5000];
vector<int> adj[5000], inv[5000], a;
vector<int> force(vector<int> f, int p) {
	vector<int> res,deg(n);
	for (int i = 0; i < n; ++i) {
		for (int j: adj[i]) if (!used[j]) deg[i]++;
	}
	for (int i: f) used[i] = 1;
	while (f.size()) {
		int u = f.back(); f.pop_back();
		res.push_back(u);
		for (int v: inv[u]) {
			if (!used[v]) {
				deg[v]--;
				if (a[v] == p || !deg[v]) {
					used[v] = 1;
					f.push_back(v);
				}
			}
		}
	}
	return res;
}

vector<int> who_wins(vector<int> _a, vector<int> r, vector<int> u, vector<int> v) {
	a = _a;
	n = a.size();
	for (int i = 0; i < u.size(); ++i) {
		adj[u[i]].push_back(v[i]);
		inv[v[i]].push_back(u[i]);
	}
	vector<int> res(n);
	for (;;) {
		vector<int> chargers, rem;
		for (int i = 0; i < n; ++i) if (!used[i]){
			rem.push_back(i);
			if (r[i]) chargers.push_back(i);
		} 
		vector<int> fa = force(chargers, 1);
		if (fa.size() == rem.size()) {
			for (int i: rem) res[i] = 1;
			break;
		} else {
			vector<int> s, in_fa(n);
			for (int i: fa) in_fa[i] = 1;
			for (int i: rem) {
				used[i] = 0;
				if (!in_fa[i]) s.push_back(i); 
			}
			vector<int> fb = force(s, 0);
			if (fb.size() == rem.size()) break;
		}
	}
	return res;
}

Compilation message

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |  for (int i = 0; i < u.size(); ++i) {
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1228 KB Output is correct
2 Correct 7 ms 1216 KB Output is correct
3 Correct 6 ms 1228 KB Output is correct
4 Correct 6 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 6 ms 1176 KB Output is correct
7 Correct 5 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 5 ms 1188 KB Output is correct
11 Correct 5 ms 1228 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 532 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 532 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 528 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 1536 KB Output is correct
2 Correct 319 ms 1652 KB Output is correct
3 Correct 435 ms 1620 KB Output is correct
4 Correct 10 ms 1484 KB Output is correct
5 Correct 11 ms 1700 KB Output is correct
6 Correct 11 ms 1712 KB Output is correct
7 Correct 9 ms 1700 KB Output is correct
8 Correct 9 ms 1752 KB Output is correct
9 Correct 8 ms 1700 KB Output is correct
10 Correct 9 ms 1676 KB Output is correct
11 Correct 9 ms 1612 KB Output is correct
12 Correct 8 ms 1612 KB Output is correct
13 Correct 11 ms 1724 KB Output is correct
14 Correct 9 ms 1740 KB Output is correct
15 Correct 10 ms 1704 KB Output is correct
16 Correct 9 ms 1696 KB Output is correct
17 Correct 10 ms 1732 KB Output is correct
18 Correct 469 ms 1528 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1356 KB Output is correct
2 Correct 9 ms 1484 KB Output is correct
3 Correct 9 ms 1740 KB Output is correct
4 Correct 10 ms 1740 KB Output is correct
5 Correct 10 ms 1752 KB Output is correct
6 Correct 10 ms 1692 KB Output is correct
7 Correct 9 ms 1696 KB Output is correct
8 Correct 9 ms 1656 KB Output is correct
9 Correct 8 ms 1612 KB Output is correct
10 Correct 9 ms 1744 KB Output is correct
11 Correct 9 ms 1740 KB Output is correct
12 Correct 9 ms 1728 KB Output is correct
13 Correct 10 ms 1728 KB Output is correct
14 Correct 9 ms 1612 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1484 KB Output is correct
2 Correct 10 ms 1684 KB Output is correct
3 Correct 10 ms 1684 KB Output is correct
4 Correct 9 ms 1612 KB Output is correct
5 Correct 2 ms 588 KB Output is correct
6 Correct 5 ms 1228 KB Output is correct
7 Correct 6 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 6 ms 1180 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 6 ms 1100 KB Output is correct

Subtask #6
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1228 KB Output is correct
2 Correct 7 ms 1216 KB Output is correct
3 Correct 6 ms 1228 KB Output is correct
4 Correct 6 ms 1228 KB Output is correct
5 Correct 6 ms 1228 KB Output is correct
6 Correct 6 ms 1176 KB Output is correct
7 Correct 5 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 5 ms 1188 KB Output is correct
11 Correct 5 ms 1228 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 532 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 532 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 528 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 160 ms 1536 KB Output is correct
33 Correct 319 ms 1652 KB Output is correct
34 Correct 435 ms 1620 KB Output is correct
35 Correct 10 ms 1484 KB Output is correct
36 Correct 11 ms 1700 KB Output is correct
37 Correct 11 ms 1712 KB Output is correct
38 Correct 9 ms 1700 KB Output is correct
39 Correct 9 ms 1752 KB Output is correct
40 Correct 8 ms 1700 KB Output is correct
41 Correct 9 ms 1676 KB Output is correct
42 Correct 9 ms 1612 KB Output is correct
43 Correct 8 ms 1612 KB Output is correct
44 Correct 11 ms 1724 KB Output is correct
45 Correct 9 ms 1740 KB Output is correct
46 Correct 10 ms 1704 KB Output is correct
47 Correct 9 ms 1696 KB Output is correct
48 Correct 10 ms 1732 KB Output is correct
49 Correct 469 ms 1528 KB Output is correct
50 Correct 8 ms 1356 KB Output is correct
51 Correct 9 ms 1484 KB Output is correct
52 Correct 9 ms 1740 KB Output is correct
53 Correct 10 ms 1740 KB Output is correct
54 Correct 10 ms 1752 KB Output is correct
55 Correct 10 ms 1692 KB Output is correct
56 Correct 9 ms 1696 KB Output is correct
57 Correct 9 ms 1656 KB Output is correct
58 Correct 8 ms 1612 KB Output is correct
59 Correct 9 ms 1744 KB Output is correct
60 Correct 9 ms 1740 KB Output is correct
61 Correct 9 ms 1728 KB Output is correct
62 Correct 10 ms 1728 KB Output is correct
63 Correct 9 ms 1612 KB Output is correct
64 Correct 10 ms 1484 KB Output is correct
65 Correct 10 ms 1684 KB Output is correct
66 Correct 10 ms 1684 KB Output is correct
67 Correct 9 ms 1612 KB Output is correct
68 Correct 2 ms 588 KB Output is correct
69 Correct 5 ms 1228 KB Output is correct
70 Correct 6 ms 1228 KB Output is correct
71 Correct 6 ms 1228 KB Output is correct
72 Correct 6 ms 1180 KB Output is correct
73 Correct 2 ms 716 KB Output is correct
74 Correct 6 ms 1100 KB Output is correct
75 Correct 256 ms 1764 KB Output is correct
76 Correct 342 ms 1808 KB Output is correct
77 Correct 478 ms 1748 KB Output is correct
78 Correct 474 ms 1752 KB Output is correct
79 Correct 471 ms 1808 KB Output is correct
80 Correct 10 ms 1696 KB Output is correct
81 Correct 14 ms 1704 KB Output is correct
82 Correct 12 ms 1612 KB Output is correct
83 Correct 11 ms 1740 KB Output is correct
84 Correct 12 ms 1716 KB Output is correct
85 Correct 11 ms 1732 KB Output is correct
86 Correct 12 ms 1728 KB Output is correct
87 Correct 10 ms 1740 KB Output is correct
88 Correct 15 ms 1712 KB Output is correct
89 Correct 11 ms 1740 KB Output is correct
90 Correct 20 ms 1740 KB Output is correct
91 Correct 19 ms 1724 KB Output is correct
92 Correct 35 ms 1732 KB Output is correct
93 Correct 36 ms 1740 KB Output is correct
94 Correct 45 ms 1736 KB Output is correct
95 Correct 39 ms 1708 KB Output is correct
96 Correct 115 ms 1612 KB Output is correct
97 Correct 621 ms 1724 KB Output is correct
98 Correct 919 ms 1696 KB Output is correct
99 Correct 985 ms 1856 KB Output is correct
100 Correct 486 ms 1524 KB Output is correct