oj.uz

Submission #1062516

# Submission time Handle Problem Language Result Execution time Memory
1062516 2024-08-17T08:08:17 Z jerzyk Connecting Supertrees (IOI20_supertrees) C++17
56 / 100
 132 ms 27472 KB 
#include <bits/stdc++.h>
#include "supertrees.h"

using namespace std;
#define pb push_back
#define st first
#define nd second
typedef long long ll;
typedef long double ld;
const ll I = 1000LL * 1000LL * 1000LL * 1000LL * 1000LL * 1000LL;
const int II = 2 * 1000 * 1000 * 1000;
const ll M = 1000LL * 1000LL * 1000LL + 7LL;
const int N = 1000 + 7;
int tab[N][N], sp[N];
vector<vector<int>> answer;
int vis[N];

void L(int a, int b)
{
    answer[a - 1][b - 1] = 1;
    answer[b - 1][a - 1] = 1;
}

int construct(vector<vector<int>> xd)
{
    int n = xd.size();
    answer = xd;
    for(int i = 1; i <= n; ++i)
        for(int j = 1; j <= n; ++j)
        {
            answer[i - 1][j - 1] = 0;
            tab[i][j] = xd[i - 1][j - 1];
            if(tab[i][j] == 3) return 0;
        }
    for(int i = 1; i <= n; ++i)
    {
        if(sp[i] == 0) sp[i] = i;
        for(int j = i + 1; j <= n; ++j)
        {
            if(sp[i] == sp[j] && tab[i][j] != 1) return 0;
            if(tab[i][j] != 1) continue;

            if(tab[i][j] == 1 && sp[j] == 0)
            {
                L(i, j);
                sp[j] = sp[i];
            }
            if(sp[i] != sp[j]) return 0;
        }
    }
    cerr << "xd2\n";
    for(int i = 1; i <= n; ++i)
    {
        for(int j = i + 1; j <= n; ++j)
        {
            if(sp[i] == sp[j] && tab[i][j] != 1) return 0;
            if(sp[i] == sp[j]) continue;
            if(tab[i][j] != tab[sp[i]][sp[j]]) return 0;
        }
    }
    for(int i = 1; i <= n; ++i)
    {
        if(sp[i] != i) continue;
        if(vis[i])
        {
            //cerr << "vis: " << i << " " << vis[i] << "\n";
            for(int j = i + 1; j <= n; ++j)
                if(tab[i][j] == 2 && vis[i] != vis[j] && sp[j] == j)
                    return 0;
            continue;
        }
        //cerr << "cyc " << i << "\n";
        vector<int> cur;
        cur.pb(i);
        for(int j = 1; j <= n; ++j)
        {
            if(tab[i][j] == 2 && vis[j]) return 0;
            if(sp[j] == j && tab[i][j] == 2)
                cur.pb(j);
        }
        /*cerr << "cur " << cur.size() << "\n";
        for(int j = 0; j < (int)cur.size(); ++j)
            cerr << cur[j] << " ";
        cerr << "\n";*/
        if(cur.size() == 1) continue;

        for(int l = 0; l < (int)cur.size(); ++l)
            for(int j = l + 1; j < (int)cur.size(); ++j)
                if(tab[cur[l]][cur[j]] != 2) return 0;
        for(int j = 1; j < (int)cur.size(); ++j)
        {
            L(cur[j - 1], cur[j]);
            vis[cur[j]] = i;
        }
        L(cur.back(), cur[0]);
        cerr << "end\n";
    }
    build(answer);
    return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 6 ms 3672 KB Output is correct
7 Correct 117 ms 27084 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 6 ms 3672 KB Output is correct
7 Correct 117 ms 27084 KB Output is correct
8 Correct 1 ms 600 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 6 ms 3420 KB Output is correct
13 Correct 128 ms 27104 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 3164 KB Output is correct
17 Correct 62 ms 17232 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 32 ms 8392 KB Output is correct
21 Correct 125 ms 27320 KB Output is correct
22 Correct 115 ms 27472 KB Output is correct
23 Correct 122 ms 27128 KB Output is correct
24 Correct 117 ms 27124 KB Output is correct
25 Correct 62 ms 17236 KB Output is correct
26 Correct 58 ms 17232 KB Output is correct
27 Correct 123 ms 27220 KB Output is correct
28 Correct 117 ms 27288 KB Output is correct

Subtask #3
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 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
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 29 ms 8620 KB Output is correct
5 Correct 118 ms 27192 KB Output is correct
6 Correct 116 ms 27220 KB Output is correct
7 Correct 126 ms 27408 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 31 ms 8464 KB Output is correct
10 Correct 119 ms 27284 KB Output is correct
11 Correct 125 ms 27076 KB Output is correct
12 Correct 132 ms 27216 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 29 ms 8580 KB Output is correct
17 Correct 118 ms 27216 KB Output is correct
18 Correct 120 ms 27144 KB Output is correct
19 Correct 124 ms 27220 KB Output is correct
20 Correct 118 ms 27124 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 6 ms 3672 KB Output is correct
7 Correct 117 ms 27084 KB Output is correct
8 Correct 1 ms 600 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 6 ms 3420 KB Output is correct
13 Correct 128 ms 27104 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 3164 KB Output is correct
17 Correct 62 ms 17232 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 32 ms 8392 KB Output is correct
21 Correct 125 ms 27320 KB Output is correct
22 Correct 115 ms 27472 KB Output is correct
23 Correct 122 ms 27128 KB Output is correct
24 Correct 117 ms 27124 KB Output is correct
25 Correct 62 ms 17236 KB Output is correct
26 Correct 58 ms 17232 KB Output is correct
27 Correct 123 ms 27220 KB Output is correct
28 Correct 117 ms 27288 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 348 KB Output is correct
32 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 6 ms 3672 KB Output is correct
7 Correct 117 ms 27084 KB Output is correct
8 Correct 1 ms 600 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 6 ms 3420 KB Output is correct
13 Correct 128 ms 27104 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 3164 KB Output is correct
17 Correct 62 ms 17232 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 32 ms 8392 KB Output is correct
21 Correct 125 ms 27320 KB Output is correct
22 Correct 115 ms 27472 KB Output is correct
23 Correct 122 ms 27128 KB Output is correct
24 Correct 117 ms 27124 KB Output is correct
25 Correct 62 ms 17236 KB Output is correct
26 Correct 58 ms 17232 KB Output is correct
27 Correct 123 ms 27220 KB Output is correct
28 Correct 117 ms 27288 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 348 KB Output is correct
32 Incorrect 0 ms 348 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -