oj.uz

Submission #800897

# Submission time Handle Problem Language Result Execution time Memory
800897 2023-08-02T01:27:42 Z physics07 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 182 ms 26056 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int parent[1001];
int find(int x) {
    if(parent[x]<0) return x;
    return parent[x]=find(parent[x]);
}
void merge(int x, int y) {
    x=find(x), y=find(y);
    if(x==y) return;
    if(parent[x]>parent[y]) swap(x, y);
    parent[x]+=parent[y];
    parent[y]=x;
}
vector<int> adj[1001], cc[1001], root;
vector<vector<int>> ans;
bool visited[1001];
int construct(vector<vector<int>> p) {
	int n = p.size();
	ans.resize(n);
	for(int i=0; i<n; i++) {
        ans[i].resize(n);
        for(int j=0; j<n; j++) ans[i][j]=0;
	}
    for(int i=0; i<n; i++) {
        if(p[i][i]!=1) return 0;
        for(int j=0; j<n; j++) if(p[i][j]!=p[j][i] || p[i][j]==3) return 0;
    }
    memset(parent, -1, sizeof(parent));
    for(int i=0; i<n; i++) for(int j=i+1; j<n; j++) if(p[i][j]) merge(i, j);
    for(int i=0; i<n; i++) root.push_back(find(i));
    sort(root.begin(), root.end());
    root.erase(unique(root.begin(), root.end()), root.end());
    vector<int> v;
    for(int i=0; i<(int)root.size(); i++) {
        for(int j=0; j<n; j++) if(find(j)==root[i]) cc[i].push_back(j);
        for(auto j: cc[i]) {
            for(auto k: cc[i]) if(j!=k) {
                if(!p[j][k]) return 0;
                if(p[j][k]==1) adj[j].push_back(k);
            }
            if(!visited[j]) {
                v.push_back(j);
                for(auto k: adj[j]) visited[k]=1;
            }
        }
        if(v.size()==2) return 0;
        for(auto j: v) for(auto k: v) if(j<k) {
            for(auto l: adj[j]) for(auto m: adj[k]) if(l==m || p[l][m]==1) return 0;
        }
        for(auto j: v) for(auto l: adj[j]) for(auto k: adj[j]) if(p[k][l]==2) return 0;
        for(auto j: v) for(auto k: adj[j]) ans[j][k]=ans[k][j]=1;
        if(v.size()>2) for(int j=0; j<(int)v.size(); j++) {
            int a=v[j], b=(j?v[j-1]:v.back());
            ans[a][b]=ans[b][a]=1;
        }
        v.clear();
        memset(visited, 0, sizeof(visited));
    }
    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 0 ms 340 KB Output is correct
3 Correct 1 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 7 ms 1428 KB Output is correct
7 Correct 174 ms 26056 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 0 ms 340 KB Output is correct
3 Correct 1 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 7 ms 1428 KB Output is correct
7 Correct 174 ms 26056 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 8 ms 1208 KB Output is correct
13 Correct 168 ms 22076 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 85 ms 12108 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 42 ms 5840 KB Output is correct
21 Correct 171 ms 22604 KB Output is correct
22 Correct 166 ms 22136 KB Output is correct
23 Correct 179 ms 24140 KB Output is correct
24 Correct 169 ms 22072 KB Output is correct
25 Correct 78 ms 12344 KB Output is correct
26 Correct 76 ms 12100 KB Output is correct
27 Correct 174 ms 25036 KB Output is correct
28 Correct 168 ms 22084 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 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 7 ms 1236 KB Output is correct
9 Correct 170 ms 22080 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 177 ms 22080 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 86 ms 12084 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 42 ms 5732 KB Output is correct
22 Correct 172 ms 22348 KB Output is correct
23 Correct 166 ms 22072 KB Output is correct
24 Correct 176 ms 22096 KB Output is correct
25 Correct 78 ms 12096 KB Output is correct
26 Correct 78 ms 12108 KB Output is correct
27 Correct 166 ms 22072 KB Output is correct
28 Correct 178 ms 22112 KB Output is correct
29 Correct 77 ms 12084 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 51 ms 5808 KB Output is correct
5 Correct 171 ms 22584 KB Output is correct
6 Correct 168 ms 22092 KB Output is correct
7 Correct 182 ms 24116 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 42 ms 5800 KB Output is correct
10 Correct 168 ms 22076 KB Output is correct
11 Correct 173 ms 22092 KB Output is correct
12 Correct 173 ms 22068 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 42 ms 5820 KB Output is correct
17 Correct 168 ms 22072 KB Output is correct
18 Correct 169 ms 22100 KB Output is correct
19 Correct 173 ms 22076 KB Output is correct
20 Correct 169 ms 22084 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 0 ms 340 KB Output is correct
3 Correct 1 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 7 ms 1428 KB Output is correct
7 Correct 174 ms 26056 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 8 ms 1208 KB Output is correct
13 Correct 168 ms 22076 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 85 ms 12108 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 42 ms 5840 KB Output is correct
21 Correct 171 ms 22604 KB Output is correct
22 Correct 166 ms 22136 KB Output is correct
23 Correct 179 ms 24140 KB Output is correct
24 Correct 169 ms 22072 KB Output is correct
25 Correct 78 ms 12344 KB Output is correct
26 Correct 76 ms 12100 KB Output is correct
27 Correct 174 ms 25036 KB Output is correct
28 Correct 168 ms 22084 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 7 ms 1236 KB Output is correct
37 Correct 170 ms 22080 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 177 ms 22080 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 86 ms 12084 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 42 ms 5732 KB Output is correct
50 Correct 172 ms 22348 KB Output is correct
51 Correct 166 ms 22072 KB Output is correct
52 Correct 176 ms 22096 KB Output is correct
53 Correct 78 ms 12096 KB Output is correct
54 Correct 78 ms 12108 KB Output is correct
55 Correct 166 ms 22072 KB Output is correct
56 Correct 178 ms 22112 KB Output is correct
57 Correct 77 ms 12084 KB Output is correct
58 Correct 0 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 4 ms 724 KB Output is correct
61 Correct 85 ms 12084 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 0 ms 340 KB Output is correct
64 Correct 0 ms 340 KB Output is correct
65 Correct 42 ms 5816 KB Output is correct
66 Correct 81 ms 12356 KB Output is correct
67 Correct 81 ms 12360 KB Output is correct
68 Correct 82 ms 12340 KB Output is correct
69 Correct 78 ms 12444 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 0 ms 340 KB Output is correct
3 Correct 1 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 7 ms 1428 KB Output is correct
7 Correct 174 ms 26056 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 8 ms 1208 KB Output is correct
13 Correct 168 ms 22076 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 724 KB Output is correct
17 Correct 85 ms 12108 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 42 ms 5840 KB Output is correct
21 Correct 171 ms 22604 KB Output is correct
22 Correct 166 ms 22136 KB Output is correct
23 Correct 179 ms 24140 KB Output is correct
24 Correct 169 ms 22072 KB Output is correct
25 Correct 78 ms 12344 KB Output is correct
26 Correct 76 ms 12100 KB Output is correct
27 Correct 174 ms 25036 KB Output is correct
28 Correct 168 ms 22084 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 7 ms 1236 KB Output is correct
37 Correct 170 ms 22080 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 177 ms 22080 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 4 ms 724 KB Output is correct
45 Correct 86 ms 12084 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 42 ms 5732 KB Output is correct
50 Correct 172 ms 22348 KB Output is correct
51 Correct 166 ms 22072 KB Output is correct
52 Correct 176 ms 22096 KB Output is correct
53 Correct 78 ms 12096 KB Output is correct
54 Correct 78 ms 12108 KB Output is correct
55 Correct 166 ms 22072 KB Output is correct
56 Correct 178 ms 22112 KB Output is correct
57 Correct 77 ms 12084 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 51 ms 5808 KB Output is correct
62 Correct 171 ms 22584 KB Output is correct
63 Correct 168 ms 22092 KB Output is correct
64 Correct 182 ms 24116 KB Output is correct
65 Correct 0 ms 340 KB Output is correct
66 Correct 42 ms 5800 KB Output is correct
67 Correct 168 ms 22076 KB Output is correct
68 Correct 173 ms 22092 KB Output is correct
69 Correct 173 ms 22068 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 0 ms 340 KB Output is correct
72 Correct 0 ms 340 KB Output is correct
73 Correct 42 ms 5820 KB Output is correct
74 Correct 168 ms 22072 KB Output is correct
75 Correct 169 ms 22100 KB Output is correct
76 Correct 173 ms 22076 KB Output is correct
77 Correct 169 ms 22084 KB Output is correct
78 Correct 0 ms 340 KB Output is correct
79 Correct 0 ms 340 KB Output is correct
80 Correct 4 ms 724 KB Output is correct
81 Correct 85 ms 12084 KB Output is correct
82 Correct 0 ms 340 KB Output is correct
83 Correct 0 ms 340 KB Output is correct
84 Correct 0 ms 340 KB Output is correct
85 Correct 42 ms 5816 KB Output is correct
86 Correct 81 ms 12356 KB Output is correct
87 Correct 81 ms 12360 KB Output is correct
88 Correct 82 ms 12340 KB Output is correct
89 Correct 78 ms 12444 KB Output is correct
90 Correct 1 ms 340 KB Output is correct
91 Correct 0 ms 356 KB Output is correct
92 Correct 4 ms 852 KB Output is correct
93 Correct 81 ms 12340 KB Output is correct
94 Correct 1 ms 340 KB Output is correct
95 Correct 0 ms 340 KB Output is correct
96 Correct 0 ms 340 KB Output is correct
97 Correct 21 ms 3744 KB Output is correct
98 Correct 78 ms 12952 KB Output is correct
99 Correct 80 ms 12940 KB Output is correct
100 Correct 80 ms 12860 KB Output is correct
101 Correct 79 ms 12956 KB Output is correct
102 Correct 76 ms 12460 KB Output is correct
103 Correct 76 ms 12464 KB Output is correct
104 Correct 84 ms 12556 KB Output is correct
105 Correct 84 ms 12816 KB Output is correct