oj.uz

Submission #994867

# Submission time Handle Problem Language Result Execution time Memory
994867 2024-06-08T07:52:55 Z Newtonabc Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 197 ms 24148 KB 
#include "supertrees.h"
#include<bits/stdc++.h>
using namespace std;
const int N=1e3+10;
vector<int> v;
int pa[N];
bool cy[N][N];
vector<int> adj[N];
int cnt=0;
bool vs[N];
void dfs(int u){
	vs[u]=true;
	cnt++;
	if(adj[u].size()==1) v.push_back(u);
	for(int i=0;i<adj[u].size();i++){
		if(!vs[adj[u][i]]) dfs(adj[u][i]);
	}
}
int root(int x){
	if(pa[x]==x) return x;
	else return pa[x]=root(pa[x]);
}
int construct(vector<vector<int> > p) {
	int n = p.size();
	vector<vector<int> > answer;
	for (int i = 0; i < n; i++) {
		vector<int> row(n,0);
		answer.push_back(row);
	}
	for(int i=0;i<n;i++) pa[i]=i;
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(p[i][j]==1 && root(i)!=root(j)){
				answer[i][j]=1;
				answer[j][i]=1;
				pa[root(i)]=root(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]==0){
				if(root(i)==root(j)) return 0;
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			int a,b;
			if(p[i][j]==2){
				a=root(i),b=root(j);
				if(a==b) continue;
				pa[a]=b;
				answer[a][b]=1;
				answer[b][a]=1;
				adj[a].push_back(b);
				adj[b].push_back(a);
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(root(i)==root(j) && p[i][j]==0) return 0;
		}
	}
	for(int i=0;i<n;i++){
		cnt=0;
		if(!vs[i]) dfs(i);
		if(cnt==2) return 0;
		if(v.empty()) continue;
		answer[v[0]][v[1]]=1;
		answer[v[1]][v[0]]=1;
		v.clear();
	}
	build(answer);
	return 1;
}

Compilation message

supertrees.cpp: In function 'void dfs(int)':
supertrees.cpp:15:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for(int i=0;i<adj[u].size();i++){
      |              ~^~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 10 ms 1144 KB Output is correct
7 Correct 124 ms 22048 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 10 ms 1144 KB Output is correct
7 Correct 124 ms 22048 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 125 ms 22096 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 5 ms 860 KB Output is correct
17 Correct 78 ms 12112 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 32 ms 5896 KB Output is correct
21 Correct 123 ms 22096 KB Output is correct
22 Correct 127 ms 22096 KB Output is correct
23 Correct 128 ms 22056 KB Output is correct
24 Correct 125 ms 22096 KB Output is correct
25 Correct 53 ms 12116 KB Output is correct
26 Correct 53 ms 12116 KB Output is correct
27 Correct 130 ms 22100 KB Output is correct
28 Correct 124 ms 22068 KB Output is correct

Subtask #3
19.0 / 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 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 5 ms 1292 KB Output is correct
9 Correct 164 ms 22068 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 1372 KB Output is correct
13 Correct 149 ms 22128 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 472 KB Output is correct
16 Correct 3 ms 860 KB Output is correct
17 Correct 71 ms 14164 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 468 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 35 ms 6228 KB Output is correct
22 Correct 147 ms 24148 KB Output is correct
23 Correct 150 ms 24144 KB Output is correct
24 Correct 130 ms 24144 KB Output is correct
25 Correct 87 ms 14164 KB Output is correct
26 Correct 60 ms 14248 KB Output is correct
27 Correct 122 ms 24144 KB Output is correct
28 Correct 133 ms 24148 KB Output is correct
29 Correct 85 ms 14032 KB Output is correct

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 1 ms 348 KB Output is correct
4 Correct 46 ms 5720 KB Output is correct
5 Correct 120 ms 22072 KB Output is correct
6 Correct 197 ms 22096 KB Output is correct
7 Correct 127 ms 22072 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 33 ms 5776 KB Output is correct
10 Correct 125 ms 22016 KB Output is correct
11 Correct 118 ms 22100 KB Output is correct
12 Correct 129 ms 22044 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 30 ms 5952 KB Output is correct
17 Correct 129 ms 22096 KB Output is correct
18 Correct 122 ms 22136 KB Output is correct
19 Correct 137 ms 22096 KB Output is correct
20 Correct 155 ms 22100 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 10 ms 1144 KB Output is correct
7 Correct 124 ms 22048 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 125 ms 22096 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 5 ms 860 KB Output is correct
17 Correct 78 ms 12112 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 32 ms 5896 KB Output is correct
21 Correct 123 ms 22096 KB Output is correct
22 Correct 127 ms 22096 KB Output is correct
23 Correct 128 ms 22056 KB Output is correct
24 Correct 125 ms 22096 KB Output is correct
25 Correct 53 ms 12116 KB Output is correct
26 Correct 53 ms 12116 KB Output is correct
27 Correct 130 ms 22100 KB Output is correct
28 Correct 124 ms 22068 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 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 5 ms 1292 KB Output is correct
37 Correct 164 ms 22068 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 6 ms 1372 KB Output is correct
41 Correct 149 ms 22128 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 472 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 71 ms 14164 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 468 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 35 ms 6228 KB Output is correct
50 Correct 147 ms 24148 KB Output is correct
51 Correct 150 ms 24144 KB Output is correct
52 Correct 130 ms 24144 KB Output is correct
53 Correct 87 ms 14164 KB Output is correct
54 Correct 60 ms 14248 KB Output is correct
55 Correct 122 ms 24144 KB Output is correct
56 Correct 133 ms 24148 KB Output is correct
57 Correct 85 ms 14032 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 3 ms 964 KB Output is correct
61 Correct 63 ms 14104 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 0 ms 348 KB Output is correct
65 Correct 57 ms 6224 KB Output is correct
66 Correct 66 ms 14164 KB Output is correct
67 Correct 51 ms 14160 KB Output is correct
68 Correct 52 ms 14248 KB Output is correct
69 Correct 96 ms 14160 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 10 ms 1144 KB Output is correct
7 Correct 124 ms 22048 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 7 ms 1116 KB Output is correct
13 Correct 125 ms 22096 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 5 ms 860 KB Output is correct
17 Correct 78 ms 12112 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 32 ms 5896 KB Output is correct
21 Correct 123 ms 22096 KB Output is correct
22 Correct 127 ms 22096 KB Output is correct
23 Correct 128 ms 22056 KB Output is correct
24 Correct 125 ms 22096 KB Output is correct
25 Correct 53 ms 12116 KB Output is correct
26 Correct 53 ms 12116 KB Output is correct
27 Correct 130 ms 22100 KB Output is correct
28 Correct 124 ms 22068 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 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 5 ms 1292 KB Output is correct
37 Correct 164 ms 22068 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 6 ms 1372 KB Output is correct
41 Correct 149 ms 22128 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 472 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 71 ms 14164 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 468 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 35 ms 6228 KB Output is correct
50 Correct 147 ms 24148 KB Output is correct
51 Correct 150 ms 24144 KB Output is correct
52 Correct 130 ms 24144 KB Output is correct
53 Correct 87 ms 14164 KB Output is correct
54 Correct 60 ms 14248 KB Output is correct
55 Correct 122 ms 24144 KB Output is correct
56 Correct 133 ms 24148 KB Output is correct
57 Correct 85 ms 14032 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 46 ms 5720 KB Output is correct
62 Correct 120 ms 22072 KB Output is correct
63 Correct 197 ms 22096 KB Output is correct
64 Correct 127 ms 22072 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Correct 33 ms 5776 KB Output is correct
67 Correct 125 ms 22016 KB Output is correct
68 Correct 118 ms 22100 KB Output is correct
69 Correct 129 ms 22044 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 30 ms 5952 KB Output is correct
74 Correct 129 ms 22096 KB Output is correct
75 Correct 122 ms 22136 KB Output is correct
76 Correct 137 ms 22096 KB Output is correct
77 Correct 155 ms 22100 KB Output is correct
78 Correct 1 ms 344 KB Output is correct
79 Correct 1 ms 348 KB Output is correct
80 Correct 3 ms 964 KB Output is correct
81 Correct 63 ms 14104 KB Output is correct
82 Correct 1 ms 348 KB Output is correct
83 Correct 0 ms 348 KB Output is correct
84 Correct 0 ms 348 KB Output is correct
85 Correct 57 ms 6224 KB Output is correct
86 Correct 66 ms 14164 KB Output is correct
87 Correct 51 ms 14160 KB Output is correct
88 Correct 52 ms 14248 KB Output is correct
89 Correct 96 ms 14160 KB Output is correct
90 Correct 0 ms 348 KB Output is correct
91 Correct 1 ms 344 KB Output is correct
92 Correct 3 ms 860 KB Output is correct
93 Correct 59 ms 14164 KB Output is correct
94 Correct 0 ms 344 KB Output is correct
95 Correct 0 ms 348 KB Output is correct
96 Correct 0 ms 348 KB Output is correct
97 Correct 19 ms 3932 KB Output is correct
98 Correct 65 ms 14108 KB Output is correct
99 Correct 85 ms 14160 KB Output is correct
100 Correct 83 ms 14232 KB Output is correct
101 Correct 101 ms 14244 KB Output is correct
102 Correct 54 ms 14160 KB Output is correct
103 Correct 50 ms 14160 KB Output is correct
104 Correct 50 ms 14236 KB Output is correct
105 Correct 55 ms 14160 KB Output is correct