Submission #1061836

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1061836	2024-08-16T14:08:20 Z	ArthuroWich	Connecting Supertrees (IOI20_supertrees)	C++17	11 / 100	127 ms	25940 KB

supertrees

#include "supertrees.h"
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>> adj;
int n, vis[1005], co = 0;
void dfs(int i) {
    if (vis[i]) {
        return;
    }
    vis[i] = co;
    for (int j = 0; j < n; j++) {
        if (i == j || adj[i][j] == 0) {
            continue;
        }
        dfs(j);
    }
}
int construct(vector<vector<int>> p) {
    n = p.size();
    adj = p;
    vector<vector<int>> ans(n, vector<int>(n, 0));
    for (int i = 0; i < n; i++) {
        if (vis[i]) {
            continue;
        }
        co++;
        dfs(i);
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (p[i][j] == 0) {
                if (vis[i] == vis[j]) {
                    return 0;
                }
            } else {
                if (vis[i] != vis[j]) {
                    return 0;
                }
            }
        }
    }
    for (int i = 1; i <= co; i++) {
        int root = 0;
        for (int j = 0; j < n; j++) {
            if (vis[j] == co) {
                root = j;
                break;
            }
        }
        for (int j = 0; j < n; j++) {
            if (j == root) {
                continue;
            }
            if (adj[root][j]) {
                ans[root][j] = 1;
                ans[j][root] = 1;
            }
        }
    }
    build(ans);
    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	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	111 ms	25940 KB	Output is correct

Subtask #2

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	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	111 ms	25940 KB	Output is correct
8	Correct	1 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	1 ms	348 KB	Output is correct
12	Correct	5 ms	1372 KB	Output is correct
13	Correct	127 ms	25936 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	3 ms	860 KB	Output is correct
17	Correct	62 ms	16212 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Incorrect	30 ms	6736 KB	Too few ways to get from 0 to 5, should be 1 found 0
21	Halted	0 ms	0 KB	-

Subtask #3

0 / 19.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Incorrect	0 ms	348 KB	Answer gives possible 1 while actual possible 0
5	Halted	0 ms	0 KB	-

Subtask #4

0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Incorrect	0 ms	348 KB	Too few ways to get from 0 to 1, should be 2 found 1
3	Halted	0 ms	0 KB	-

Subtask #5

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	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	111 ms	25940 KB	Output is correct
8	Correct	1 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	1 ms	348 KB	Output is correct
12	Correct	5 ms	1372 KB	Output is correct
13	Correct	127 ms	25936 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	3 ms	860 KB	Output is correct
17	Correct	62 ms	16212 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Incorrect	30 ms	6736 KB	Too few ways to get from 0 to 5, should be 1 found 0
21	Halted	0 ms	0 KB	-

Subtask #6

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	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	111 ms	25940 KB	Output is correct
8	Correct	1 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	1 ms	348 KB	Output is correct
12	Correct	5 ms	1372 KB	Output is correct
13	Correct	127 ms	25936 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	3 ms	860 KB	Output is correct
17	Correct	62 ms	16212 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Incorrect	30 ms	6736 KB	Too few ways to get from 0 to 5, should be 1 found 0
21	Halted	0 ms	0 KB	-