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Submission #779192

# Submission time Handle Problem Language Result Execution time Memory
779192 2023-07-11T08:51:31 Z jasmin Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 176 ms 22068 KB 
#include "supertrees.h"
#include<bits/stdc++.h>
using namespace std;

/*void build(vector<vector<int> > adi){
        int n=adi.size();
        for(int i=0; i<n; i++){
            for(int j=0; j<n; j++){
                cout << adi[i][j] << " ";
            }
            cout << "\n";
        }
}*/

vector<vector<int> > components(vector<vector<int> >& p, int n, bool& pos){
    vector<vector<int> > comp;

    vector<bool> vis(n);
    vector<int> comp_num(n, -1); int mom=0;
    for(int v=0; v<n; v++){
        if(vis[v]) continue;
        vis[v]=true;

        comp.push_back({});
        comp.back().push_back(v);
        comp_num[v]=mom;

        for(int u=0; u<n; u++){
            if(u!=v && p[v][u]!=0){

                comp.back().push_back(u);
                comp_num[u]=mom;
                vis[u]=true;
            }
        }
        mom++;
    }

    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){

            if(comp_num[i]==comp_num[j]){
                pos = pos && (p[i][j]!=0 && p[j][i]!=0);
            }
            else{
                pos = pos && (p[i][j]==0 && p[j][i]==0);
            }

        }
    }
    
    return comp;
}

void solve_component(vector<int>& c, int n, vector<vector<int> >& p, vector<vector<int> >& adi, bool& pos){

    vector<int> cycle;
    vector<bool> vis(n);
    for(auto v: c){
        if(vis[v]) continue;

        cycle.push_back(v);
        for(auto u: c){

            if(u!=v && p[v][u]==1){
                adi[v][u]=1;
                adi[u][v]=1;

                vis[u]=true;

                for(int i=0; i<n; i++){
                    pos = pos && (p[v][i] == p[u][i]);
                }
            }
        }
    }

    for(int i=0; i+1<(int)cycle.size(); i++){
        adi[cycle[i]][cycle[i+1]]=1;
        adi[cycle[i+1]][cycle[i]]=1;
    }
    if(cycle.size()>1){
        adi[cycle[0]][cycle.back()]=1;
        adi[cycle.back()][cycle[0]]=1;
    }

    if(cycle.size()==2){
        pos=false;
    }
}

int construct(vector<vector<int> > p) {
	int n = p.size();
	
    bool pos=true;
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            if(p[i][j]==3){
                pos=false;
            }
        }
    }
	
	vector<vector<int> > comp=components(p, n, pos);


    vector<vector<int> > adi(n, vector<int> (n, 0));
    for(auto c: comp){
        solve_component(c, n, p, adi, pos);
    }

    if(pos){
        build(adi);
        return 1;
    }
    return 0;
}

/*signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin >> n;
    vector<vector<int> > p(n, vector<int> (n));
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            cin >> p[i][j];
        }
    }

    cout << construct(p) << "\n";
}*/

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 163 ms 22028 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 163 ms 22028 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 162 ms 22020 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 80 ms 12044 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 41 ms 5776 KB Output is correct
21 Correct 166 ms 22032 KB Output is correct
22 Correct 161 ms 21964 KB Output is correct
23 Correct 168 ms 22024 KB Output is correct
24 Correct 162 ms 22060 KB Output is correct
25 Correct 76 ms 12108 KB Output is correct
26 Correct 72 ms 12048 KB Output is correct
27 Correct 169 ms 22020 KB Output is correct
28 Correct 162 ms 22020 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 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 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 7 ms 1108 KB Output is correct
9 Correct 162 ms 22068 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 8 ms 1108 KB Output is correct
13 Correct 164 ms 22020 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 82 ms 12164 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 40 ms 5692 KB Output is correct
22 Correct 161 ms 21964 KB Output is correct
23 Correct 160 ms 22064 KB Output is correct
24 Correct 174 ms 22024 KB Output is correct
25 Correct 72 ms 12160 KB Output is correct
26 Correct 76 ms 12112 KB Output is correct
27 Correct 160 ms 22020 KB Output is correct
28 Correct 170 ms 22020 KB Output is correct
29 Correct 72 ms 12164 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory 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 46 ms 5748 KB Output is correct
5 Correct 167 ms 22016 KB Output is correct
6 Correct 162 ms 22004 KB Output is correct
7 Correct 176 ms 22024 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 40 ms 5768 KB Output is correct
10 Correct 168 ms 22020 KB Output is correct
11 Correct 168 ms 22032 KB Output is correct
12 Correct 168 ms 21976 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 40 ms 5776 KB Output is correct
17 Correct 163 ms 22032 KB Output is correct
18 Correct 162 ms 22036 KB Output is correct
19 Correct 161 ms 22028 KB Output is correct
20 Correct 162 ms 22024 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 163 ms 22028 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 162 ms 22020 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 80 ms 12044 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 41 ms 5776 KB Output is correct
21 Correct 166 ms 22032 KB Output is correct
22 Correct 161 ms 21964 KB Output is correct
23 Correct 168 ms 22024 KB Output is correct
24 Correct 162 ms 22060 KB Output is correct
25 Correct 76 ms 12108 KB Output is correct
26 Correct 72 ms 12048 KB Output is correct
27 Correct 169 ms 22020 KB Output is correct
28 Correct 162 ms 22020 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 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 162 ms 22068 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 8 ms 1108 KB Output is correct
41 Correct 164 ms 22020 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 82 ms 12164 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 40 ms 5692 KB Output is correct
50 Correct 161 ms 21964 KB Output is correct
51 Correct 160 ms 22064 KB Output is correct
52 Correct 174 ms 22024 KB Output is correct
53 Correct 72 ms 12160 KB Output is correct
54 Correct 76 ms 12112 KB Output is correct
55 Correct 160 ms 22020 KB Output is correct
56 Correct 170 ms 22020 KB Output is correct
57 Correct 72 ms 12164 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 5 ms 724 KB Output is correct
61 Correct 81 ms 12044 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 0 ms 212 KB Output is correct
64 Correct 0 ms 212 KB Output is correct
65 Correct 40 ms 5680 KB Output is correct
66 Correct 76 ms 12036 KB Output is correct
67 Correct 73 ms 12028 KB Output is correct
68 Correct 78 ms 12036 KB Output is correct
69 Correct 78 ms 12180 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 7 ms 1108 KB Output is correct
7 Correct 163 ms 22028 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 7 ms 1100 KB Output is correct
13 Correct 162 ms 22020 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 80 ms 12044 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 41 ms 5776 KB Output is correct
21 Correct 166 ms 22032 KB Output is correct
22 Correct 161 ms 21964 KB Output is correct
23 Correct 168 ms 22024 KB Output is correct
24 Correct 162 ms 22060 KB Output is correct
25 Correct 76 ms 12108 KB Output is correct
26 Correct 72 ms 12048 KB Output is correct
27 Correct 169 ms 22020 KB Output is correct
28 Correct 162 ms 22020 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 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 7 ms 1108 KB Output is correct
37 Correct 162 ms 22068 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 8 ms 1108 KB Output is correct
41 Correct 164 ms 22020 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 82 ms 12164 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 40 ms 5692 KB Output is correct
50 Correct 161 ms 21964 KB Output is correct
51 Correct 160 ms 22064 KB Output is correct
52 Correct 174 ms 22024 KB Output is correct
53 Correct 72 ms 12160 KB Output is correct
54 Correct 76 ms 12112 KB Output is correct
55 Correct 160 ms 22020 KB Output is correct
56 Correct 170 ms 22020 KB Output is correct
57 Correct 72 ms 12164 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 46 ms 5748 KB Output is correct
62 Correct 167 ms 22016 KB Output is correct
63 Correct 162 ms 22004 KB Output is correct
64 Correct 176 ms 22024 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 40 ms 5768 KB Output is correct
67 Correct 168 ms 22020 KB Output is correct
68 Correct 168 ms 22032 KB Output is correct
69 Correct 168 ms 21976 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 40 ms 5776 KB Output is correct
74 Correct 163 ms 22032 KB Output is correct
75 Correct 162 ms 22036 KB Output is correct
76 Correct 161 ms 22028 KB Output is correct
77 Correct 162 ms 22024 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 5 ms 724 KB Output is correct
81 Correct 81 ms 12044 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 0 ms 212 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 40 ms 5680 KB Output is correct
86 Correct 76 ms 12036 KB Output is correct
87 Correct 73 ms 12028 KB Output is correct
88 Correct 78 ms 12036 KB Output is correct
89 Correct 78 ms 12180 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 4 ms 712 KB Output is correct
93 Correct 82 ms 12164 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 19 ms 3704 KB Output is correct
98 Correct 74 ms 14068 KB Output is correct
99 Correct 75 ms 14076 KB Output is correct
100 Correct 73 ms 14068 KB Output is correct
101 Correct 73 ms 14068 KB Output is correct
102 Correct 78 ms 13984 KB Output is correct
103 Correct 74 ms 14028 KB Output is correct
104 Correct 74 ms 14072 KB Output is correct
105 Correct 87 ms 14076 KB Output is correct