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Submission #1057051

# Submission time Handle Problem Language Result Execution time Memory
1057051 2024-08-13T13:39:24 Z aufan Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 112 ms 24148 KB 
#include "supertrees.h"
#include <bits/stdc++.h>

using namespace std;

int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<int> par(n);
	vector<vector<int>> ans(n, vector<int>(n));
	iota(par.begin(), par.end(), 0);
	for (int i = 0; i < n; i++) {
		if (par[i] != i) continue;

		for (int j = i + 1; j < n; j++) {
			if (p[i][j] == 1) {
				par[j] = i;
				ans[i][j] = ans[j][i] = 1;
			}
		}
	}

	vector<int> par2(n);
	iota(par2.begin(), par2.end(), 0);
	for (int i = 0; i < n; i++) {
		if (par[i] != i || par2[i] != i) continue;

		int k = i;
		for (int j = i + 1; j < n; j++) {
			if (par[j] != j || par2[j] != j) continue;

			if (p[k][j] == 2) {
				par2[j] = i;
				ans[k][j] = ans[j][k] = 1;
				k = j;
			}
		}

		if (ans[i][k]) return 0;
		if (k == i) continue;
		ans[k][i] = ans[i][k] = 1;
	}

	for (int i = 0; i < n; i++) {
		for (int j = i + 1; j < n; j++) {
			if (p[i][j] == 0) {
				if (par2[par[i]] == par2[par[j]]) {
					return 0;
				}
			} else if (p[i][j] == 1) {
				if (par[i] != par[j]) {
					return 0;
				}
			} else if (p[i][j] == 2) {
				if (par[i] == par[j] || par2[par[i]] != par2[par[j]]) {
					return 0;
				}
			} else if (p[i][j] == 3) {
				return 0;
			}
		}
	}

	build(ans);

	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 100 ms 22024 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 100 ms 22024 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1112 KB Output is correct
13 Correct 92 ms 21976 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 856 KB Output is correct
17 Correct 45 ms 12044 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 23 ms 5744 KB Output is correct
21 Correct 93 ms 22096 KB Output is correct
22 Correct 95 ms 22100 KB Output is correct
23 Correct 110 ms 22096 KB Output is correct
24 Correct 112 ms 22024 KB Output is correct
25 Correct 41 ms 12056 KB Output is correct
26 Correct 53 ms 12116 KB Output is correct
27 Correct 109 ms 22096 KB Output is correct
28 Correct 92 ms 22036 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 4 ms 1116 KB Output is correct
9 Correct 94 ms 22040 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1112 KB Output is correct
13 Correct 95 ms 22028 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 48 ms 12060 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 24 ms 5780 KB Output is correct
22 Correct 97 ms 22100 KB Output is correct
23 Correct 93 ms 22096 KB Output is correct
24 Correct 99 ms 22100 KB Output is correct
25 Correct 40 ms 12112 KB Output is correct
26 Correct 42 ms 12116 KB Output is correct
27 Correct 93 ms 22100 KB Output is correct
28 Correct 105 ms 22096 KB Output is correct
29 Correct 40 ms 12112 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 23 ms 5724 KB Output is correct
5 Correct 101 ms 22032 KB Output is correct
6 Correct 92 ms 22096 KB Output is correct
7 Correct 98 ms 22096 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 32 ms 5904 KB Output is correct
10 Correct 95 ms 22040 KB Output is correct
11 Correct 93 ms 22028 KB Output is correct
12 Correct 101 ms 22100 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 23 ms 6408 KB Output is correct
17 Correct 95 ms 24144 KB Output is correct
18 Correct 94 ms 24148 KB Output is correct
19 Correct 106 ms 24144 KB Output is correct
20 Correct 93 ms 24148 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 100 ms 22024 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1112 KB Output is correct
13 Correct 92 ms 21976 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 856 KB Output is correct
17 Correct 45 ms 12044 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 23 ms 5744 KB Output is correct
21 Correct 93 ms 22096 KB Output is correct
22 Correct 95 ms 22100 KB Output is correct
23 Correct 110 ms 22096 KB Output is correct
24 Correct 112 ms 22024 KB Output is correct
25 Correct 41 ms 12056 KB Output is correct
26 Correct 53 ms 12116 KB Output is correct
27 Correct 109 ms 22096 KB Output is correct
28 Correct 92 ms 22036 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 4 ms 1116 KB Output is correct
37 Correct 94 ms 22040 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 4 ms 1112 KB Output is correct
41 Correct 95 ms 22028 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 2 ms 860 KB Output is correct
45 Correct 48 ms 12060 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 24 ms 5780 KB Output is correct
50 Correct 97 ms 22100 KB Output is correct
51 Correct 93 ms 22096 KB Output is correct
52 Correct 99 ms 22100 KB Output is correct
53 Correct 40 ms 12112 KB Output is correct
54 Correct 42 ms 12116 KB Output is correct
55 Correct 93 ms 22100 KB Output is correct
56 Correct 105 ms 22096 KB Output is correct
57 Correct 40 ms 12112 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 2 ms 860 KB Output is correct
61 Correct 44 ms 12056 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 27 ms 5760 KB Output is correct
66 Correct 45 ms 14084 KB Output is correct
67 Correct 52 ms 14224 KB Output is correct
68 Correct 41 ms 14200 KB Output is correct
69 Correct 43 ms 14164 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 4 ms 1116 KB Output is correct
7 Correct 100 ms 22024 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 4 ms 1112 KB Output is correct
13 Correct 92 ms 21976 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 2 ms 856 KB Output is correct
17 Correct 45 ms 12044 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 23 ms 5744 KB Output is correct
21 Correct 93 ms 22096 KB Output is correct
22 Correct 95 ms 22100 KB Output is correct
23 Correct 110 ms 22096 KB Output is correct
24 Correct 112 ms 22024 KB Output is correct
25 Correct 41 ms 12056 KB Output is correct
26 Correct 53 ms 12116 KB Output is correct
27 Correct 109 ms 22096 KB Output is correct
28 Correct 92 ms 22036 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 4 ms 1116 KB Output is correct
37 Correct 94 ms 22040 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 4 ms 1112 KB Output is correct
41 Correct 95 ms 22028 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 2 ms 860 KB Output is correct
45 Correct 48 ms 12060 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 24 ms 5780 KB Output is correct
50 Correct 97 ms 22100 KB Output is correct
51 Correct 93 ms 22096 KB Output is correct
52 Correct 99 ms 22100 KB Output is correct
53 Correct 40 ms 12112 KB Output is correct
54 Correct 42 ms 12116 KB Output is correct
55 Correct 93 ms 22100 KB Output is correct
56 Correct 105 ms 22096 KB Output is correct
57 Correct 40 ms 12112 KB Output is correct
58 Correct 0 ms 344 KB Output is correct
59 Correct 1 ms 600 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 23 ms 5724 KB Output is correct
62 Correct 101 ms 22032 KB Output is correct
63 Correct 92 ms 22096 KB Output is correct
64 Correct 98 ms 22096 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 32 ms 5904 KB Output is correct
67 Correct 95 ms 22040 KB Output is correct
68 Correct 93 ms 22028 KB Output is correct
69 Correct 101 ms 22100 KB Output is correct
70 Correct 0 ms 348 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 23 ms 6408 KB Output is correct
74 Correct 95 ms 24144 KB Output is correct
75 Correct 94 ms 24148 KB Output is correct
76 Correct 106 ms 24144 KB Output is correct
77 Correct 93 ms 24148 KB Output is correct
78 Correct 1 ms 344 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 2 ms 860 KB Output is correct
81 Correct 44 ms 12056 KB Output is correct
82 Correct 0 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 27 ms 5760 KB Output is correct
86 Correct 45 ms 14084 KB Output is correct
87 Correct 52 ms 14224 KB Output is correct
88 Correct 41 ms 14200 KB Output is correct
89 Correct 43 ms 14164 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 2 ms 860 KB Output is correct
93 Correct 43 ms 14220 KB Output is correct
94 Correct 0 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 348 KB Output is correct
97 Correct 11 ms 3840 KB Output is correct
98 Correct 42 ms 14220 KB Output is correct
99 Correct 42 ms 14092 KB Output is correct
100 Correct 41 ms 14216 KB Output is correct
101 Correct 44 ms 14172 KB Output is correct
102 Correct 42 ms 14088 KB Output is correct
103 Correct 40 ms 14164 KB Output is correct
104 Correct 41 ms 14164 KB Output is correct
105 Correct 47 ms 14164 KB Output is correct