oj.uz

Submission #630072

# Submission time Handle Problem Language Result Execution time Memory
630072 2022-08-15T15:45:44 Z ttamx Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 591 ms 71084 KB 
#include "supertrees.h"
#include <bits/stdc++.h>

using namespace std;

vector<vector<int>> ans;
vector<int> adj[1005];
set<int> adj2[1005];
int pa[1005],pa2[1005];
int np[1005][1005];
bool vis[1005];

int fp(int u){
    if(pa[u]==u)return u;
    return pa[u]=fp(pa[u]);
}

void dfs(int u,int r){
    vis[u]=1;
    for(auto v:adj2[u]){
        if(vis[v])continue;
        pa[fp(u)]=fp(v);
        ans[u][v]=ans[v][u]=1;
        dfs(v,r);
        return;
    }
    if(u!=r)ans[u][r]=ans[r][u]=1;
}

int construct(vector<vector<int>> p) {
	int n = p.size();
	for (int i = 0; i < n; i++) {
		vector<int> row;
		row.resize(n);
		ans.push_back(row);
	}
	iota(pa,pa+n,0);
	for(int i=0;i<n;++i)for(int j=0;j<n;++j)if(p[i][j]==3)return 0;
	for(int i=0;i<n;++i)for(int j=0;j<n;++j)if(p[i][j]==1)pa[fp(i)]=fp(j);
	for(int i=0;i<n;++i)adj[fp(i)].emplace_back(i);
	for(int i=0;i<n;++i)for(auto j:adj[i])if(i!=j)ans[i][j]=ans[j][i]=1;
	for(int i=0;i<n;++i)pa2[i]=pa[i];
	for(int i=0;i<n;++i){
        int cnt=0;
        for(int j=0;j<n;++j)if(p[i][j]==2){
            ++cnt;
            adj2[pa2[i]].insert(pa2[j]);
            adj2[pa2[j]].insert(pa2[i]);
        }
        if(cnt==1)return 0;
	}
	for(int i=0;i<n;++i)if(i==pa2[i])if(!vis[i])dfs(i,i);
	for(int i=0;i<n;++i)fp(i);
	for(int i=0;i<n;++i)for(int j=0;j<n;++j)if(ans[i][j]==1)np[pa[i]][pa[j]]=1;
	for(int i=0;i<n;++i)for(int j=0;j<n;++j){
        if(i==j)continue;
        if(pa[i]==pa[j]&&p[i][j]==0)return 0;
        if(pa2[i]==pa2[j]&&p[i][j]!=1)return 0;
        if(pa[i]==pa[j]&&pa2[i]!=pa2[j]&&p[i][j]!=2)return 0;
        if(pa[i]!=pa[j]&&p[i][j]!=0)return 0;
        if(np[pa[i]][pa[j]]==1&&p[i][j]==0)return 0;
        if(np[pa[i]][pa[j]]==0&&p[i][j]!=0)return 0;
	}
	build(ans);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 9 ms 1236 KB Output is correct
7 Correct 194 ms 22112 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 9 ms 1236 KB Output is correct
7 Correct 194 ms 22112 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 172 ms 22096 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 852 KB Output is correct
17 Correct 97 ms 12128 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 43 ms 5924 KB Output is correct
21 Correct 176 ms 22112 KB Output is correct
22 Correct 174 ms 23636 KB Output is correct
23 Correct 193 ms 22100 KB Output is correct
24 Correct 179 ms 22096 KB Output is correct
25 Correct 75 ms 12244 KB Output is correct
26 Correct 74 ms 13772 KB Output is correct
27 Correct 189 ms 22096 KB Output is correct
28 Correct 170 ms 22168 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 8 ms 1236 KB Output is correct
9 Correct 174 ms 22100 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 380 KB Output is correct
12 Correct 14 ms 3156 KB Output is correct
13 Correct 591 ms 71084 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 9 ms 1876 KB Output is correct
17 Correct 317 ms 37628 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 48 ms 6772 KB Output is correct
22 Correct 209 ms 28740 KB Output is correct
23 Correct 173 ms 25024 KB Output is correct
24 Correct 344 ms 47448 KB Output is correct
25 Correct 73 ms 14148 KB Output is correct
26 Correct 100 ms 18884 KB Output is correct
27 Correct 178 ms 25056 KB Output is correct
28 Correct 347 ms 47432 KB Output is correct
29 Correct 80 ms 14156 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 46 ms 5884 KB Output is correct
5 Correct 185 ms 22100 KB Output is correct
6 Correct 174 ms 23668 KB Output is correct
7 Correct 208 ms 22100 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 48 ms 6708 KB Output is correct
10 Correct 202 ms 28728 KB Output is correct
11 Correct 186 ms 25032 KB Output is correct
12 Correct 322 ms 47556 KB Output is correct
13 Correct 1 ms 380 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 376 KB Output is correct
16 Correct 45 ms 6656 KB Output is correct
17 Correct 191 ms 28788 KB Output is correct
18 Correct 197 ms 26012 KB Output is correct
19 Correct 176 ms 25028 KB Output is correct
20 Correct 176 ms 24060 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 9 ms 1236 KB Output is correct
7 Correct 194 ms 22112 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 172 ms 22096 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 852 KB Output is correct
17 Correct 97 ms 12128 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 43 ms 5924 KB Output is correct
21 Correct 176 ms 22112 KB Output is correct
22 Correct 174 ms 23636 KB Output is correct
23 Correct 193 ms 22100 KB Output is correct
24 Correct 179 ms 22096 KB Output is correct
25 Correct 75 ms 12244 KB Output is correct
26 Correct 74 ms 13772 KB Output is correct
27 Correct 189 ms 22096 KB Output is correct
28 Correct 170 ms 22168 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 8 ms 1236 KB Output is correct
37 Correct 174 ms 22100 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 380 KB Output is correct
40 Correct 14 ms 3156 KB Output is correct
41 Correct 591 ms 71084 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 9 ms 1876 KB Output is correct
45 Correct 317 ms 37628 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 48 ms 6772 KB Output is correct
50 Correct 209 ms 28740 KB Output is correct
51 Correct 173 ms 25024 KB Output is correct
52 Correct 344 ms 47448 KB Output is correct
53 Correct 73 ms 14148 KB Output is correct
54 Correct 100 ms 18884 KB Output is correct
55 Correct 178 ms 25056 KB Output is correct
56 Correct 347 ms 47432 KB Output is correct
57 Correct 80 ms 14156 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 4 ms 960 KB Output is correct
61 Correct 102 ms 14312 KB Output is correct
62 Correct 1 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 52 ms 6604 KB Output is correct
66 Correct 96 ms 18884 KB Output is correct
67 Correct 87 ms 16328 KB Output is correct
68 Correct 77 ms 15052 KB Output is correct
69 Correct 72 ms 14156 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 9 ms 1236 KB Output is correct
7 Correct 194 ms 22112 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 172 ms 22096 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 852 KB Output is correct
17 Correct 97 ms 12128 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 43 ms 5924 KB Output is correct
21 Correct 176 ms 22112 KB Output is correct
22 Correct 174 ms 23636 KB Output is correct
23 Correct 193 ms 22100 KB Output is correct
24 Correct 179 ms 22096 KB Output is correct
25 Correct 75 ms 12244 KB Output is correct
26 Correct 74 ms 13772 KB Output is correct
27 Correct 189 ms 22096 KB Output is correct
28 Correct 170 ms 22168 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 8 ms 1236 KB Output is correct
37 Correct 174 ms 22100 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 380 KB Output is correct
40 Correct 14 ms 3156 KB Output is correct
41 Correct 591 ms 71084 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 9 ms 1876 KB Output is correct
45 Correct 317 ms 37628 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 48 ms 6772 KB Output is correct
50 Correct 209 ms 28740 KB Output is correct
51 Correct 173 ms 25024 KB Output is correct
52 Correct 344 ms 47448 KB Output is correct
53 Correct 73 ms 14148 KB Output is correct
54 Correct 100 ms 18884 KB Output is correct
55 Correct 178 ms 25056 KB Output is correct
56 Correct 347 ms 47432 KB Output is correct
57 Correct 80 ms 14156 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 0 ms 340 KB Output is correct
61 Correct 46 ms 5884 KB Output is correct
62 Correct 185 ms 22100 KB Output is correct
63 Correct 174 ms 23668 KB Output is correct
64 Correct 208 ms 22100 KB Output is correct
65 Correct 0 ms 340 KB Output is correct
66 Correct 48 ms 6708 KB Output is correct
67 Correct 202 ms 28728 KB Output is correct
68 Correct 186 ms 25032 KB Output is correct
69 Correct 322 ms 47556 KB Output is correct
70 Correct 1 ms 380 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 376 KB Output is correct
73 Correct 45 ms 6656 KB Output is correct
74 Correct 191 ms 28788 KB Output is correct
75 Correct 197 ms 26012 KB Output is correct
76 Correct 176 ms 25028 KB Output is correct
77 Correct 176 ms 24060 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 0 ms 340 KB Output is correct
80 Correct 4 ms 960 KB Output is correct
81 Correct 102 ms 14312 KB Output is correct
82 Correct 1 ms 340 KB Output is correct
83 Correct 1 ms 340 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 52 ms 6604 KB Output is correct
86 Correct 96 ms 18884 KB Output is correct
87 Correct 87 ms 16328 KB Output is correct
88 Correct 77 ms 15052 KB Output is correct
89 Correct 72 ms 14156 KB Output is correct
90 Correct 0 ms 340 KB Output is correct
91 Correct 1 ms 340 KB Output is correct
92 Correct 4 ms 904 KB Output is correct
93 Correct 90 ms 14160 KB Output is correct
94 Correct 1 ms 340 KB Output is correct
95 Correct 1 ms 340 KB Output is correct
96 Correct 1 ms 340 KB Output is correct
97 Correct 18 ms 3844 KB Output is correct
98 Correct 74 ms 14152 KB Output is correct
99 Correct 78 ms 14140 KB Output is correct
100 Correct 100 ms 14072 KB Output is correct
101 Correct 71 ms 14148 KB Output is correct
102 Correct 78 ms 14148 KB Output is correct
103 Correct 77 ms 14084 KB Output is correct
104 Correct 78 ms 14152 KB Output is correct
105 Correct 80 ms 14156 KB Output is correct