oj.uz

Submission #795918

# Submission time Handle Problem Language Result Execution time Memory
795918 2023-07-27T22:17:39 Z Liudas Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 206 ms 22600 KB 
#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
void dfs(int head, vector<vector<int>> &arr, vector<int> &vis, vector<vector<int>> &path, int N, vector<int> &col, int c){
    vis[head] = true;
    col[head] = c;
    for(int i = 0; i < N; i ++){
        if(!vis[i] && arr[head][i] == 1){
            path[i][head] = 1;
            path[head][i] = 1;
            dfs(i, arr, vis, path, N, col, c);
        }
    }
}
void dfs2(int head, vector<vector<int>> &path, int N, int &e, vector<int> &vis, vector<vector<int>> &arr, vector<int> &col){
    vis[head] = true;
    for(int i = 0; i < N; i ++){
        if(col[i] == col[head]){
            vis[i] = true;
        }
    }
    e = head;
    for(int i = 0; i < N; i ++){
        if(!vis[i] && arr[head][i] == 2){
            int c = col[i];
            for(int j = 0; j < N; j ++){
                if(col[j] == c){
                    col[j] = col[head];
                }
            }
            path[i][head] = 1;
            path[head][i] = 1;
            dfs2(i, path, N, e, vis, arr, col);
        }
    }
}
int construct(vector<vector<int>> arr){
    int N = arr.size();
    vector<int> vis(N, 0), col(N, -1);
    bool pos = true;
    vector<vector<int>> path(N, vector<int>(N));
    int c = 1;
    for(int i = 0; i < N; i ++){
        if(!vis[i]){
            dfs(i, arr, vis, path, N, col, c++);
        }
    }
    fill(vis.begin(), vis.end(), 0);
    for(int i = 0; i < N; i ++){
        if(!vis[i] && *max_element(arr[i].begin(), arr[i].end()) == 2){
            int t = -1;
            dfs2(i, path, N, t, vis, arr, col);
            if(path[i][t]){
                pos = false;
            }
            path[i][t] = 1;
            path[t][i] = 1;
        }
    }
    for(int i = 0; i < N; i ++){
        for(int j = 0; j < N; j ++){
            if(arr[i][j] == 0 && col[i] == col[j]){
                pos = false;
            }
            if(arr[i][j] == 3){
                pos = false;
            }
        }
    }
    if(pos)
    build(path);
    return pos;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 160 ms 22600 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 160 ms 22600 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 167 ms 22480 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 796 KB Output is correct
17 Correct 82 ms 13600 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 40 ms 6104 KB Output is correct
21 Correct 190 ms 22476 KB Output is correct
22 Correct 157 ms 22544 KB Output is correct
23 Correct 206 ms 22500 KB Output is correct
24 Correct 156 ms 22464 KB Output is correct
25 Correct 76 ms 13548 KB Output is correct
26 Correct 92 ms 13532 KB Output is correct
27 Correct 168 ms 22532 KB Output is correct
28 Correct 155 ms 22488 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 7 ms 1236 KB Output is correct
9 Correct 152 ms 22556 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 178 ms 22580 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 852 KB Output is correct
17 Correct 75 ms 13660 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 300 KB Output is correct
21 Correct 42 ms 6168 KB Output is correct
22 Correct 159 ms 22560 KB Output is correct
23 Correct 158 ms 22452 KB Output is correct
24 Correct 159 ms 22596 KB Output is correct
25 Correct 69 ms 13548 KB Output is correct
26 Correct 70 ms 13544 KB Output is correct
27 Correct 164 ms 22564 KB Output is correct
28 Correct 200 ms 22532 KB Output is correct
29 Correct 68 ms 13404 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 41 ms 6056 KB Output is correct
5 Correct 159 ms 22448 KB Output is correct
6 Correct 160 ms 22468 KB Output is correct
7 Correct 158 ms 22476 KB Output is correct
8 Correct 0 ms 292 KB Output is correct
9 Correct 39 ms 5976 KB Output is correct
10 Correct 161 ms 22568 KB Output is correct
11 Correct 157 ms 22420 KB Output is correct
12 Correct 158 ms 22472 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 39 ms 5936 KB Output is correct
17 Correct 159 ms 22436 KB Output is correct
18 Correct 158 ms 22348 KB Output is correct
19 Correct 158 ms 22448 KB Output is correct
20 Correct 154 ms 22356 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 160 ms 22600 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 167 ms 22480 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 796 KB Output is correct
17 Correct 82 ms 13600 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 40 ms 6104 KB Output is correct
21 Correct 190 ms 22476 KB Output is correct
22 Correct 157 ms 22544 KB Output is correct
23 Correct 206 ms 22500 KB Output is correct
24 Correct 156 ms 22464 KB Output is correct
25 Correct 76 ms 13548 KB Output is correct
26 Correct 92 ms 13532 KB Output is correct
27 Correct 168 ms 22532 KB Output is correct
28 Correct 155 ms 22488 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 7 ms 1236 KB Output is correct
37 Correct 152 ms 22556 KB Output is correct
38 Correct 1 ms 300 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 178 ms 22580 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 5 ms 852 KB Output is correct
45 Correct 75 ms 13660 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 42 ms 6168 KB Output is correct
50 Correct 159 ms 22560 KB Output is correct
51 Correct 158 ms 22452 KB Output is correct
52 Correct 159 ms 22596 KB Output is correct
53 Correct 69 ms 13548 KB Output is correct
54 Correct 70 ms 13544 KB Output is correct
55 Correct 164 ms 22564 KB Output is correct
56 Correct 200 ms 22532 KB Output is correct
57 Correct 68 ms 13404 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 69 ms 13500 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 39 ms 6060 KB Output is correct
66 Correct 71 ms 13424 KB Output is correct
67 Correct 70 ms 13316 KB Output is correct
68 Correct 69 ms 13388 KB Output is correct
69 Correct 69 ms 13372 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 160 ms 22600 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 167 ms 22480 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 796 KB Output is correct
17 Correct 82 ms 13600 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 40 ms 6104 KB Output is correct
21 Correct 190 ms 22476 KB Output is correct
22 Correct 157 ms 22544 KB Output is correct
23 Correct 206 ms 22500 KB Output is correct
24 Correct 156 ms 22464 KB Output is correct
25 Correct 76 ms 13548 KB Output is correct
26 Correct 92 ms 13532 KB Output is correct
27 Correct 168 ms 22532 KB Output is correct
28 Correct 155 ms 22488 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 7 ms 1236 KB Output is correct
37 Correct 152 ms 22556 KB Output is correct
38 Correct 1 ms 300 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 178 ms 22580 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 5 ms 852 KB Output is correct
45 Correct 75 ms 13660 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 42 ms 6168 KB Output is correct
50 Correct 159 ms 22560 KB Output is correct
51 Correct 158 ms 22452 KB Output is correct
52 Correct 159 ms 22596 KB Output is correct
53 Correct 69 ms 13548 KB Output is correct
54 Correct 70 ms 13544 KB Output is correct
55 Correct 164 ms 22564 KB Output is correct
56 Correct 200 ms 22532 KB Output is correct
57 Correct 68 ms 13404 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 41 ms 6056 KB Output is correct
62 Correct 159 ms 22448 KB Output is correct
63 Correct 160 ms 22468 KB Output is correct
64 Correct 158 ms 22476 KB Output is correct
65 Correct 0 ms 292 KB Output is correct
66 Correct 39 ms 5976 KB Output is correct
67 Correct 161 ms 22568 KB Output is correct
68 Correct 157 ms 22420 KB Output is correct
69 Correct 158 ms 22472 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 1 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 39 ms 5936 KB Output is correct
74 Correct 159 ms 22436 KB Output is correct
75 Correct 158 ms 22348 KB Output is correct
76 Correct 158 ms 22448 KB Output is correct
77 Correct 154 ms 22356 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 3 ms 852 KB Output is correct
81 Correct 69 ms 13500 KB Output is correct
82 Correct 1 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 39 ms 6060 KB Output is correct
86 Correct 71 ms 13424 KB Output is correct
87 Correct 70 ms 13316 KB Output is correct
88 Correct 69 ms 13388 KB Output is correct
89 Correct 69 ms 13372 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 292 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 71 ms 13516 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 1 ms 296 KB Output is correct
97 Correct 19 ms 3504 KB Output is correct
98 Correct 71 ms 13440 KB Output is correct
99 Correct 69 ms 13368 KB Output is correct
100 Correct 69 ms 13364 KB Output is correct
101 Correct 68 ms 13368 KB Output is correct
102 Correct 62 ms 13396 KB Output is correct
103 Correct 64 ms 13336 KB Output is correct
104 Correct 64 ms 13508 KB Output is correct
105 Correct 75 ms 13364 KB Output is correct