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Submission #953785

# Submission time Handle Problem Language Result Execution time Memory
953785 2024-03-26T16:13:51 Z Trisanu_Das Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 188 ms 24148 KB 
#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
 
int n, par[1005], ls[1005];
vector<vector<int> > b;
 
int find(int u){
  if(par[u] == u) return u;
  par[u] = find(par[u]);
  return par[u];
}
 
void union_(int u, int v){
  u = find(u); v = find(v);
  if(u == v) return;
  par[u] = v;
  b[u][ls[v]] = b[ls[v]][u] = 1;
  ls[v] = ls[u];
}
 
int construct(vector<vector<int> > p){
  n = p.size();
  b.assign(n, vector<int>(n, 0));
  iota(par, par + n, 0); iota(ls, ls + n, 0);
  for(int i = 0; i < n; i++) {
    for(int j = i + 1; j < n; j++) {
      if(p[i][j] == 3) return 0;
      if(p[i][j] == 1) union_(i, j);
    }
  }
  for(int i = 0; i < n; i++) for(int j = i + 1; j < n; j++) if(p[i][j] != 1 && find(i) == find(j)) return 0;
  iota(ls, ls + n, 0);
  for(int i = 0; i < n; i++) for(int j = i + 1; j < n; j++) if(p[i][j] == 2) union_(i, j);
  for(int i = 0; i < n; i++){
    if(par[i] == i && ls[i] != i){
      if(b[ls[i]][i] == 1) return 0;
      b[ls[i]][i] = b[i][ls[i]] = 1;
    }
  }
  for(int i = 0; i < n; i++) for(int j = i + 1; j < n; j++) if(find(i) == find(j) && p[i][j] == 0) return 0;
  build(b);
  return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1116 KB Output is correct
7 Correct 167 ms 22008 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1116 KB Output is correct
7 Correct 167 ms 22008 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1116 KB Output is correct
13 Correct 155 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 69 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 39 ms 5772 KB Output is correct
21 Correct 158 ms 22096 KB Output is correct
22 Correct 161 ms 22148 KB Output is correct
23 Correct 161 ms 22028 KB Output is correct
24 Correct 159 ms 22096 KB Output is correct
25 Correct 63 ms 12052 KB Output is correct
26 Correct 62 ms 12116 KB Output is correct
27 Correct 167 ms 22048 KB Output is correct
28 Correct 155 ms 22100 KB Output is correct

Subtask #3
19.0 / 19.0

# 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 344 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 7 ms 1116 KB Output is correct
9 Correct 157 ms 22000 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 168 ms 22268 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 71 ms 14164 KB Output is correct
18 Correct 1 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 39 ms 6388 KB Output is correct
22 Correct 156 ms 24148 KB Output is correct
23 Correct 158 ms 23892 KB Output is correct
24 Correct 160 ms 24144 KB Output is correct
25 Correct 66 ms 14160 KB Output is correct
26 Correct 79 ms 14164 KB Output is correct
27 Correct 159 ms 24076 KB Output is correct
28 Correct 163 ms 24144 KB Output is correct
29 Correct 65 ms 14048 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 43 ms 5684 KB Output is correct
5 Correct 188 ms 22028 KB Output is correct
6 Correct 156 ms 22100 KB Output is correct
7 Correct 162 ms 22048 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 38 ms 5780 KB Output is correct
10 Correct 155 ms 22040 KB Output is correct
11 Correct 156 ms 22004 KB Output is correct
12 Correct 163 ms 22036 KB Output is correct
13 Correct 0 ms 356 KB Output is correct
14 Correct 0 ms 352 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 44 ms 5712 KB Output is correct
17 Correct 156 ms 22100 KB Output is correct
18 Correct 181 ms 22044 KB Output is correct
19 Correct 156 ms 22028 KB Output is correct
20 Correct 155 ms 22128 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1116 KB Output is correct
7 Correct 167 ms 22008 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1116 KB Output is correct
13 Correct 155 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 69 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 39 ms 5772 KB Output is correct
21 Correct 158 ms 22096 KB Output is correct
22 Correct 161 ms 22148 KB Output is correct
23 Correct 161 ms 22028 KB Output is correct
24 Correct 159 ms 22096 KB Output is correct
25 Correct 63 ms 12052 KB Output is correct
26 Correct 62 ms 12116 KB Output is correct
27 Correct 167 ms 22048 KB Output is correct
28 Correct 155 ms 22100 KB Output is correct
29 Correct 1 ms 344 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 344 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 7 ms 1116 KB Output is correct
37 Correct 157 ms 22000 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 7 ms 1116 KB Output is correct
41 Correct 168 ms 22268 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 71 ms 14164 KB Output is correct
46 Correct 1 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 39 ms 6388 KB Output is correct
50 Correct 156 ms 24148 KB Output is correct
51 Correct 158 ms 23892 KB Output is correct
52 Correct 160 ms 24144 KB Output is correct
53 Correct 66 ms 14160 KB Output is correct
54 Correct 79 ms 14164 KB Output is correct
55 Correct 159 ms 24076 KB Output is correct
56 Correct 163 ms 24144 KB Output is correct
57 Correct 65 ms 14048 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 3 ms 960 KB Output is correct
61 Correct 69 ms 14220 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 1 ms 344 KB Output is correct
65 Correct 40 ms 6372 KB Output is correct
66 Correct 69 ms 14224 KB Output is correct
67 Correct 68 ms 14164 KB Output is correct
68 Correct 66 ms 14164 KB Output is correct
69 Correct 64 ms 14160 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 7 ms 1116 KB Output is correct
7 Correct 167 ms 22008 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 6 ms 1116 KB Output is correct
13 Correct 155 ms 22100 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 856 KB Output is correct
17 Correct 69 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 39 ms 5772 KB Output is correct
21 Correct 158 ms 22096 KB Output is correct
22 Correct 161 ms 22148 KB Output is correct
23 Correct 161 ms 22028 KB Output is correct
24 Correct 159 ms 22096 KB Output is correct
25 Correct 63 ms 12052 KB Output is correct
26 Correct 62 ms 12116 KB Output is correct
27 Correct 167 ms 22048 KB Output is correct
28 Correct 155 ms 22100 KB Output is correct
29 Correct 1 ms 344 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 344 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 7 ms 1116 KB Output is correct
37 Correct 157 ms 22000 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 7 ms 1116 KB Output is correct
41 Correct 168 ms 22268 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 71 ms 14164 KB Output is correct
46 Correct 1 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 39 ms 6388 KB Output is correct
50 Correct 156 ms 24148 KB Output is correct
51 Correct 158 ms 23892 KB Output is correct
52 Correct 160 ms 24144 KB Output is correct
53 Correct 66 ms 14160 KB Output is correct
54 Correct 79 ms 14164 KB Output is correct
55 Correct 159 ms 24076 KB Output is correct
56 Correct 163 ms 24144 KB Output is correct
57 Correct 65 ms 14048 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 43 ms 5684 KB Output is correct
62 Correct 188 ms 22028 KB Output is correct
63 Correct 156 ms 22100 KB Output is correct
64 Correct 162 ms 22048 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 38 ms 5780 KB Output is correct
67 Correct 155 ms 22040 KB Output is correct
68 Correct 156 ms 22004 KB Output is correct
69 Correct 163 ms 22036 KB Output is correct
70 Correct 0 ms 356 KB Output is correct
71 Correct 0 ms 352 KB Output is correct
72 Correct 1 ms 348 KB Output is correct
73 Correct 44 ms 5712 KB Output is correct
74 Correct 156 ms 22100 KB Output is correct
75 Correct 181 ms 22044 KB Output is correct
76 Correct 156 ms 22028 KB Output is correct
77 Correct 155 ms 22128 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 3 ms 960 KB Output is correct
81 Correct 69 ms 14220 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 1 ms 344 KB Output is correct
85 Correct 40 ms 6372 KB Output is correct
86 Correct 69 ms 14224 KB Output is correct
87 Correct 68 ms 14164 KB Output is correct
88 Correct 66 ms 14164 KB Output is correct
89 Correct 64 ms 14160 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 3 ms 856 KB Output is correct
93 Correct 76 ms 14168 KB Output is correct
94 Correct 1 ms 344 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 348 KB Output is correct
97 Correct 15 ms 3852 KB Output is correct
98 Correct 66 ms 14076 KB Output is correct
99 Correct 64 ms 14160 KB Output is correct
100 Correct 63 ms 14216 KB Output is correct
101 Correct 64 ms 14160 KB Output is correct
102 Correct 69 ms 14092 KB Output is correct
103 Correct 63 ms 14204 KB Output is correct
104 Correct 63 ms 14076 KB Output is correct
105 Correct 72 ms 14168 KB Output is correct