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Submission #1014119

# Submission time Handle Problem Language Result Execution time Memory
1014119 2024-07-04T11:24:02 Z 0npata Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 150 ms 24240 KB 
#include "supertrees.h"
#include<bits/stdc++.h>

using namespace std;

#define vec vector

int construct(vec<vec<int>> p) {

	int n = p.size();

	vec<vec<int>> edges(n, vec<int>(n, 0));

	vec<int> comp(n, -1);

	for(int i = 0; i<n; i++) {
		if(comp[i] != -1) continue;
		for(int j = i; j<n; j++) {
			if(p[i][j] > 0) comp[j] = i;
		}
	}

	for(int i = 0; i<n; i++) {
		for(int j = 0; j<n; j++) {
			if(((p[i][j] > 0) != (comp[i] == comp[j])) || p[i][j] == 3) {
				return 0;
			}
		}
	}

	vec<set<int>> comp_cycle(n);

	vec<int> cycle_chains(n, -1);
	for(int i = 0; i<n; i++) {
		for(int j = 0; j<n; j++) {
			if(p[i][j] == 1) {
				cycle_chains[i] = j;
				comp_cycle[comp[i]].insert(j);
				break;
			}
		}
	}

	for(int i = 0; i<n; i++) {
		for(int j = 0; j<n; j++) {
			if(comp[i] != comp[j]) continue;

			if((cycle_chains[i] == cycle_chains[j]) != (p[i][j] == 1)) {
				return 0;
			}
		}
	}

	for(int i = 0; i<n; i++) {
		if(comp[i] != i) continue;
		assert(comp_cycle[i].size() > 0);

		if(comp_cycle[i].size() == 2) return 0;

		if(comp_cycle[i].size() == 1) continue;

		int prev = *comp_cycle[i].rbegin();
		for(int u : comp_cycle[i]) {
			edges[prev][u] = 1;
			edges[u][prev] = 1;
			prev = u;
		}
	}

	for(int i = 0; i<n; i++) {
		for(int j = i-1; j>=0; j--) {
			if(cycle_chains[i] != -1 && cycle_chains[i] == cycle_chains[j]) {
				edges[i][j] = 1;
				edges[j][i] = 1;
				break;
			}
		}
	}

	build(edges);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 5 ms 1372 KB Output is correct
7 Correct 118 ms 23996 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 5 ms 1372 KB Output is correct
7 Correct 118 ms 23996 KB Output is correct
8 Correct 0 ms 348 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 9 ms 1220 KB Output is correct
13 Correct 109 ms 24148 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 53 ms 14088 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 27 ms 6228 KB Output is correct
21 Correct 142 ms 24068 KB Output is correct
22 Correct 118 ms 24208 KB Output is correct
23 Correct 122 ms 24144 KB Output is correct
24 Correct 112 ms 24196 KB Output is correct
25 Correct 50 ms 14160 KB Output is correct
26 Correct 48 ms 14220 KB Output is correct
27 Correct 114 ms 24148 KB Output is correct
28 Correct 114 ms 24220 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 344 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 1 ms 348 KB Output is correct
8 Correct 5 ms 1372 KB Output is correct
9 Correct 125 ms 24068 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 9 ms 1368 KB Output is correct
13 Correct 115 ms 24056 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 64 ms 14200 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 29 ms 6412 KB Output is correct
22 Correct 123 ms 23996 KB Output is correct
23 Correct 113 ms 24148 KB Output is correct
24 Correct 109 ms 24148 KB Output is correct
25 Correct 47 ms 14172 KB Output is correct
26 Correct 44 ms 14160 KB Output is correct
27 Correct 108 ms 24068 KB Output is correct
28 Correct 112 ms 24144 KB Output is correct
29 Correct 48 ms 14204 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 28 ms 6232 KB Output is correct
5 Correct 115 ms 24168 KB Output is correct
6 Correct 125 ms 24184 KB Output is correct
7 Correct 121 ms 24144 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 28 ms 6364 KB Output is correct
10 Correct 118 ms 24200 KB Output is correct
11 Correct 112 ms 24148 KB Output is correct
12 Correct 116 ms 24240 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 29 ms 6328 KB Output is correct
17 Correct 112 ms 24144 KB Output is correct
18 Correct 108 ms 24184 KB Output is correct
19 Correct 150 ms 23976 KB Output is correct
20 Correct 120 ms 24144 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 5 ms 1372 KB Output is correct
7 Correct 118 ms 23996 KB Output is correct
8 Correct 0 ms 348 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 9 ms 1220 KB Output is correct
13 Correct 109 ms 24148 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 53 ms 14088 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 27 ms 6228 KB Output is correct
21 Correct 142 ms 24068 KB Output is correct
22 Correct 118 ms 24208 KB Output is correct
23 Correct 122 ms 24144 KB Output is correct
24 Correct 112 ms 24196 KB Output is correct
25 Correct 50 ms 14160 KB Output is correct
26 Correct 48 ms 14220 KB Output is correct
27 Correct 114 ms 24148 KB Output is correct
28 Correct 114 ms 24220 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 344 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 1 ms 348 KB Output is correct
36 Correct 5 ms 1372 KB Output is correct
37 Correct 125 ms 24068 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 9 ms 1368 KB Output is correct
41 Correct 115 ms 24056 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 64 ms 14200 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 29 ms 6412 KB Output is correct
50 Correct 123 ms 23996 KB Output is correct
51 Correct 113 ms 24148 KB Output is correct
52 Correct 109 ms 24148 KB Output is correct
53 Correct 47 ms 14172 KB Output is correct
54 Correct 44 ms 14160 KB Output is correct
55 Correct 108 ms 24068 KB Output is correct
56 Correct 112 ms 24144 KB Output is correct
57 Correct 48 ms 14204 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 2 ms 860 KB Output is correct
61 Correct 61 ms 14068 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 28 ms 6296 KB Output is correct
66 Correct 58 ms 14076 KB Output is correct
67 Correct 59 ms 14164 KB Output is correct
68 Correct 49 ms 14160 KB Output is correct
69 Correct 50 ms 14248 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 5 ms 1372 KB Output is correct
7 Correct 118 ms 23996 KB Output is correct
8 Correct 0 ms 348 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 9 ms 1220 KB Output is correct
13 Correct 109 ms 24148 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 53 ms 14088 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 27 ms 6228 KB Output is correct
21 Correct 142 ms 24068 KB Output is correct
22 Correct 118 ms 24208 KB Output is correct
23 Correct 122 ms 24144 KB Output is correct
24 Correct 112 ms 24196 KB Output is correct
25 Correct 50 ms 14160 KB Output is correct
26 Correct 48 ms 14220 KB Output is correct
27 Correct 114 ms 24148 KB Output is correct
28 Correct 114 ms 24220 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 344 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 1 ms 348 KB Output is correct
36 Correct 5 ms 1372 KB Output is correct
37 Correct 125 ms 24068 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 9 ms 1368 KB Output is correct
41 Correct 115 ms 24056 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 64 ms 14200 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 29 ms 6412 KB Output is correct
50 Correct 123 ms 23996 KB Output is correct
51 Correct 113 ms 24148 KB Output is correct
52 Correct 109 ms 24148 KB Output is correct
53 Correct 47 ms 14172 KB Output is correct
54 Correct 44 ms 14160 KB Output is correct
55 Correct 108 ms 24068 KB Output is correct
56 Correct 112 ms 24144 KB Output is correct
57 Correct 48 ms 14204 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 28 ms 6232 KB Output is correct
62 Correct 115 ms 24168 KB Output is correct
63 Correct 125 ms 24184 KB Output is correct
64 Correct 121 ms 24144 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 28 ms 6364 KB Output is correct
67 Correct 118 ms 24200 KB Output is correct
68 Correct 112 ms 24148 KB Output is correct
69 Correct 116 ms 24240 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 29 ms 6328 KB Output is correct
74 Correct 112 ms 24144 KB Output is correct
75 Correct 108 ms 24184 KB Output is correct
76 Correct 150 ms 23976 KB Output is correct
77 Correct 120 ms 24144 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 2 ms 860 KB Output is correct
81 Correct 61 ms 14068 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 28 ms 6296 KB Output is correct
86 Correct 58 ms 14076 KB Output is correct
87 Correct 59 ms 14164 KB Output is correct
88 Correct 49 ms 14160 KB Output is correct
89 Correct 50 ms 14248 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 868 KB Output is correct
93 Correct 59 ms 14088 KB Output is correct
94 Correct 0 ms 348 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 1 ms 600 KB Output is correct
97 Correct 16 ms 3712 KB Output is correct
98 Correct 49 ms 14160 KB Output is correct
99 Correct 54 ms 14216 KB Output is correct
100 Correct 59 ms 14000 KB Output is correct
101 Correct 60 ms 14160 KB Output is correct
102 Correct 49 ms 14216 KB Output is correct
103 Correct 47 ms 14092 KB Output is correct
104 Correct 49 ms 14420 KB Output is correct
105 Correct 53 ms 14160 KB Output is correct