oj.uz

Submission #862273

# Submission time Handle Problem Language Result Execution time Memory
862273 2023-10-17T22:37:59 Z Liudas Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 183 ms 24148 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 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 376 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1368 KB Output is correct
7 Correct 148 ms 24108 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 0 ms 348 KB Output is correct
3 Correct 0 ms 376 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1368 KB Output is correct
7 Correct 148 ms 24108 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 8 ms 1184 KB Output is correct
13 Correct 151 ms 23896 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 872 KB Output is correct
17 Correct 72 ms 14196 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 38 ms 6168 KB Output is correct
21 Correct 150 ms 24056 KB Output is correct
22 Correct 161 ms 24056 KB Output is correct
23 Correct 154 ms 24020 KB Output is correct
24 Correct 154 ms 23924 KB Output is correct
25 Correct 69 ms 14160 KB Output is correct
26 Correct 77 ms 14324 KB Output is correct
27 Correct 154 ms 24068 KB Output is correct
28 Correct 152 ms 24148 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 440 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 432 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 8 ms 1368 KB Output is correct
9 Correct 151 ms 24072 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1372 KB Output is correct
13 Correct 147 ms 24056 KB Output is correct
14 Correct 1 ms 504 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 72 ms 14220 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 440 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 41 ms 6552 KB Output is correct
22 Correct 157 ms 23932 KB Output is correct
23 Correct 168 ms 23944 KB Output is correct
24 Correct 166 ms 24012 KB Output is correct
25 Correct 66 ms 14072 KB Output is correct
26 Correct 70 ms 14084 KB Output is correct
27 Correct 164 ms 24144 KB Output is correct
28 Correct 155 ms 24148 KB Output is correct
29 Correct 72 ms 14200 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 1 ms 348 KB Output is correct
4 Correct 39 ms 6228 KB Output is correct
5 Correct 151 ms 24144 KB Output is correct
6 Correct 161 ms 24072 KB Output is correct
7 Correct 154 ms 24148 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 39 ms 6172 KB Output is correct
10 Correct 149 ms 24092 KB Output is correct
11 Correct 183 ms 24144 KB Output is correct
12 Correct 153 ms 24148 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 39 ms 6236 KB Output is correct
17 Correct 154 ms 24148 KB Output is correct
18 Correct 152 ms 23920 KB Output is correct
19 Correct 151 ms 23976 KB Output is correct
20 Correct 153 ms 23892 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 0 ms 348 KB Output is correct
3 Correct 0 ms 376 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1368 KB Output is correct
7 Correct 148 ms 24108 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 8 ms 1184 KB Output is correct
13 Correct 151 ms 23896 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 872 KB Output is correct
17 Correct 72 ms 14196 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 38 ms 6168 KB Output is correct
21 Correct 150 ms 24056 KB Output is correct
22 Correct 161 ms 24056 KB Output is correct
23 Correct 154 ms 24020 KB Output is correct
24 Correct 154 ms 23924 KB Output is correct
25 Correct 69 ms 14160 KB Output is correct
26 Correct 77 ms 14324 KB Output is correct
27 Correct 154 ms 24068 KB Output is correct
28 Correct 152 ms 24148 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 440 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 432 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 8 ms 1368 KB Output is correct
37 Correct 151 ms 24072 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1372 KB Output is correct
41 Correct 147 ms 24056 KB Output is correct
42 Correct 1 ms 504 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 72 ms 14220 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 440 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 41 ms 6552 KB Output is correct
50 Correct 157 ms 23932 KB Output is correct
51 Correct 168 ms 23944 KB Output is correct
52 Correct 166 ms 24012 KB Output is correct
53 Correct 66 ms 14072 KB Output is correct
54 Correct 70 ms 14084 KB Output is correct
55 Correct 164 ms 24144 KB Output is correct
56 Correct 155 ms 24148 KB Output is correct
57 Correct 72 ms 14200 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 860 KB Output is correct
61 Correct 67 ms 14092 KB Output is correct
62 Correct 1 ms 344 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 348 KB Output is correct
65 Correct 39 ms 6212 KB Output is correct
66 Correct 69 ms 14216 KB Output is correct
67 Correct 67 ms 14080 KB Output is correct
68 Correct 74 ms 14344 KB Output is correct
69 Correct 65 ms 14164 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 0 ms 348 KB Output is correct
3 Correct 0 ms 376 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1368 KB Output is correct
7 Correct 148 ms 24108 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 8 ms 1184 KB Output is correct
13 Correct 151 ms 23896 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 872 KB Output is correct
17 Correct 72 ms 14196 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 38 ms 6168 KB Output is correct
21 Correct 150 ms 24056 KB Output is correct
22 Correct 161 ms 24056 KB Output is correct
23 Correct 154 ms 24020 KB Output is correct
24 Correct 154 ms 23924 KB Output is correct
25 Correct 69 ms 14160 KB Output is correct
26 Correct 77 ms 14324 KB Output is correct
27 Correct 154 ms 24068 KB Output is correct
28 Correct 152 ms 24148 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 440 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 432 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 8 ms 1368 KB Output is correct
37 Correct 151 ms 24072 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1372 KB Output is correct
41 Correct 147 ms 24056 KB Output is correct
42 Correct 1 ms 504 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 72 ms 14220 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 440 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 41 ms 6552 KB Output is correct
50 Correct 157 ms 23932 KB Output is correct
51 Correct 168 ms 23944 KB Output is correct
52 Correct 166 ms 24012 KB Output is correct
53 Correct 66 ms 14072 KB Output is correct
54 Correct 70 ms 14084 KB Output is correct
55 Correct 164 ms 24144 KB Output is correct
56 Correct 155 ms 24148 KB Output is correct
57 Correct 72 ms 14200 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 39 ms 6228 KB Output is correct
62 Correct 151 ms 24144 KB Output is correct
63 Correct 161 ms 24072 KB Output is correct
64 Correct 154 ms 24148 KB Output is correct
65 Correct 0 ms 348 KB Output is correct
66 Correct 39 ms 6172 KB Output is correct
67 Correct 149 ms 24092 KB Output is correct
68 Correct 183 ms 24144 KB Output is correct
69 Correct 153 ms 24148 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 39 ms 6236 KB Output is correct
74 Correct 154 ms 24148 KB Output is correct
75 Correct 152 ms 23920 KB Output is correct
76 Correct 151 ms 23976 KB Output is correct
77 Correct 153 ms 23892 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 860 KB Output is correct
81 Correct 67 ms 14092 KB Output is correct
82 Correct 1 ms 344 KB Output is correct
83 Correct 1 ms 344 KB Output is correct
84 Correct 1 ms 348 KB Output is correct
85 Correct 39 ms 6212 KB Output is correct
86 Correct 69 ms 14216 KB Output is correct
87 Correct 67 ms 14080 KB Output is correct
88 Correct 74 ms 14344 KB Output is correct
89 Correct 65 ms 14164 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct
92 Correct 3 ms 860 KB Output is correct
93 Correct 70 ms 14216 KB Output is correct
94 Correct 0 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 18 ms 3704 KB Output is correct
98 Correct 65 ms 14204 KB Output is correct
99 Correct 65 ms 14164 KB Output is correct
100 Correct 68 ms 14080 KB Output is correct
101 Correct 68 ms 14212 KB Output is correct
102 Correct 61 ms 14416 KB Output is correct
103 Correct 62 ms 14204 KB Output is correct
104 Correct 72 ms 14256 KB Output is correct
105 Correct 78 ms 14216 KB Output is correct