답안 #825359

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
825359	2023-08-14T18:36:16 Z	HorizonWest	슈퍼트리 잇기 (IOI20_supertrees)	C++17	21 / 100	196 ms	26128 KB

supertrees

#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define db double
#define ll __int128
//#define int long long
#define pb push_back
#define fs first
#define sd second
#define Mod long(1e9 + 7)
#define all(x) x.begin(), x.end()
#define unvisited long(-1)
#define Eps double(1e-9)
#define _for(i, n) for(int i = 0; i < (n); i++)
#define dbg(x) cout << #x ": " << x << endl;

const int Max = 1e6 + 7, Inf = 1e9 + 7;

void build(std::vector<std::vector<int>> b);

struct DSU
{
    vector <int> link, size;

    int find(int x)
    {
        while(x != link[x]) x = link[x];
        return x;
    }

    int sz(int x)
    {
        return size[find(x)];
    }

    bool same(int a, int b)
    {
        return find(a) == find(b);
    }

    void unite(int a, int b)
    {
        a = find(a); b = find(b);
        if(a == b) return;
        if(size[a] < size[b]) swap(a, b);
        link[b] = a; size[a] += size[b];
    }

    DSU(int n)
    {
        link.assign(n+1, 0);
        size.assign(n+1, 1);
        for(int i = 0; i <= n; i++)
            link[i] = i;
    }
};

int construct(std::vector<std::vector<int>> p)
{
    int n = p.size(); DSU St(n), Fx(n);

    vector <vector<int>> g(n, vector <int> (n, 0)),
                        ans(n, vector <int> (n, 0));

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++) if(j != i)
        {
            if(p[i][j] != p[j][i] || p[i][j] == 3)
                return 0;

            if(p[i][j] != 0)
                St.unite(i, j);
        }
    }

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
            if(St.same(i, j) && p[i][j] == 0 && i != j) return 0;
    }

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
        {
            if(p[i][j] == 1 && !Fx.same(i, j))
            {
                Fx.unite(i, j);
                ans[i][j] = ans[j][i] = 1;
            }
        }
    }

    for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
            if(Fx.same(i, j) && p[i][j] == 2) return 0;
    }

    map <int, int> mp;

    for(int i = 0; i < n; i++)
    {
        if(mp[St.find(i)]) continue;
        mp[St.find(i)] = 1;

        vector <int> s;

        for(int j = 0; j < n; j++)
        {
            if(St.same(i, j) && St.find(j) == j)
            {
                s.push_back(j);
            }
        }
        int m = s.size();

        if(m > 1)
        for(int i = 0; i < m; i++)
            ans[s[i]][s[(i+1)%m]] = ans[s[(i+1)%m]][s[i]] = 1;
    }

    build(ans);
    return 1;
}

Subtask #1
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1364 KB	Output is correct
7	Correct	161 ms	25920 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1364 KB	Output is correct
7	Correct	161 ms	25920 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1356 KB	Output is correct
13	Correct	156 ms	26036 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	3 ms	852 KB	Output is correct
17	Correct	83 ms	16004 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	41 ms	6704 KB	Output is correct
21	Correct	161 ms	25936 KB	Output is correct
22	Correct	158 ms	26128 KB	Output is correct
23	Correct	196 ms	25952 KB	Output is correct
24	Correct	160 ms	25968 KB	Output is correct
25	Correct	62 ms	16012 KB	Output is correct
26	Correct	64 ms	16104 KB	Output is correct
27	Correct	163 ms	26004 KB	Output is correct
28	Correct	179 ms	26032 KB	Output is correct

Subtask #3
0 / 19.0

#	결과	메모리	Grader output
1	Correct	212 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Incorrect	212 KB	Answer gives possible 1 while actual possible 0
5	Halted	0 KB	-

Subtask #4
0 / 35.0

#	결과	메모리	Grader output
1	Correct	212 KB	Output is correct
2	Incorrect	212 KB	Too few ways to get from 0 to 1, should be 2 found 0
3	Halted	0 KB	-

Subtask #5
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1364 KB	Output is correct
7	Correct	161 ms	25920 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1356 KB	Output is correct
13	Correct	156 ms	26036 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	3 ms	852 KB	Output is correct
17	Correct	83 ms	16004 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	41 ms	6704 KB	Output is correct
21	Correct	161 ms	25936 KB	Output is correct
22	Correct	158 ms	26128 KB	Output is correct
23	Correct	196 ms	25952 KB	Output is correct
24	Correct	160 ms	25968 KB	Output is correct
25	Correct	62 ms	16012 KB	Output is correct
26	Correct	64 ms	16104 KB	Output is correct
27	Correct	163 ms	26004 KB	Output is correct
28	Correct	179 ms	26032 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Incorrect	0 ms	212 KB	Answer gives possible 1 while actual possible 0
33	Halted	0 ms	0 KB	-

Subtask #6
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	7 ms	1364 KB	Output is correct
7	Correct	161 ms	25920 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	7 ms	1356 KB	Output is correct
13	Correct	156 ms	26036 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	3 ms	852 KB	Output is correct
17	Correct	83 ms	16004 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	41 ms	6704 KB	Output is correct
21	Correct	161 ms	25936 KB	Output is correct
22	Correct	158 ms	26128 KB	Output is correct
23	Correct	196 ms	25952 KB	Output is correct
24	Correct	160 ms	25968 KB	Output is correct
25	Correct	62 ms	16012 KB	Output is correct
26	Correct	64 ms	16104 KB	Output is correct
27	Correct	163 ms	26004 KB	Output is correct
28	Correct	179 ms	26032 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	0 ms	212 KB	Output is correct
32	Incorrect	0 ms	212 KB	Answer gives possible 1 while actual possible 0
33	Halted	0 ms	0 KB	-

답안 #825359

Compilation message

Subtask #1 11.0 / 11.0

Subtask #2 10.0 / 10.0

Subtask #3 0 / 19.0

Subtask #4 0 / 35.0

Subtask #5 0 / 21.0

Subtask #6 0 / 4.0

Subtask #1
11.0 / 11.0

Subtask #2
10.0 / 10.0

Subtask #3
0 / 19.0

Subtask #4
0 / 35.0

Subtask #5
0 / 21.0

Subtask #6
0 / 4.0