oj.uz

Submission #756341

# Submission time Handle Problem Language Result Execution time Memory
756341 2023-06-11T14:26:11 Z Trumling Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 187 ms 26188 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std; 

typedef long long ll;
#define pb push_back
#define F first
#define S second
#define enter cout<<'\n';
#define INF 99999999999999999
#define MOD 1000000007
#define all(x) x.begin(),x.end()

vector<bool>vis(1000,0);
vector<bool>vis2(1000,0);

vector<vector<int>>g;
vector<vector<int>>ans;
ll nn;

bool dfs1(int start,int beg)
{
	vis[start]=1;
	for(int i=0;i<nn;i++)
		if(g[start][i]!=g[beg][i] && i!=start && i!=beg)
			return 0;

	for(int i=0;i<nn;i++)
		if(!vis[i] && g[start][i]==1)
		{
			ans[i][start]=1;
			ans[start][i]=1;
			return dfs1(i,beg);
		}

	vis[beg]=0;

	return 1;
}

bool dfs2(int start,int beg)
{
	vis[start]=1;
	if(start!=beg)
	for(int i=0;i<nn;i++)
	{
		if(g[start][i]==1 && g[beg][i]==1)
		return 0;

		if(g[start][i]==2 && g[beg][i]==0 || g[start][i]==0 && g[beg][i]==2)
		return 0;

		if(g[start][i]==1 && g[beg][i]==0 || g[start][i]==0 && g[beg][i]==1)
		return 0;
	}
	

	for(int i=0;i<nn;i++)
		if(!vis[i] && g[start][i]==2)
		{
			ans[i][start]=1;
			ans[start][i]=1;

			return dfs2(i,beg);
		}
	ans[start][beg]=1;
	ans[beg][start]=1;
	return 1;
}

int construct(vector<vector<int>> pr) 
{
	nn=pr.size();
	g=pr;

	ans.assign(nn,vector<int>(nn,0));
	for(int i=0;i<nn;i++)
		for(int j=0;j<nn;j++)
			if(pr[i][j]==3)
			return 0;
			
	for(int i=0;i<nn;i++)
	{
		bool now=dfs1(i,i);
		if(!now)
		return 0;
	}

	for(int i=0;i<nn;i++)
	{
		if(vis[i])
		continue;

		ll count=0;
		for(int j=0;j<nn;j++)
		if(g[i][j]==2 && !vis[j])
		count++;

		if(count==1)
		return 0;

		bool now=dfs2(i,i);
		if(!now)
		return 0;
	}

	for(int i=0;i<nn;i++)
	ans[i][i]=0;

	build(ans);
	return 1;

}

Compilation message

supertrees.cpp: In function 'bool dfs2(int, int)':
supertrees.cpp:50:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   50 |   if(g[start][i]==2 && g[beg][i]==0 || g[start][i]==0 && g[beg][i]==2)
supertrees.cpp:53:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   53 |   if(g[start][i]==1 && g[beg][i]==0 || g[start][i]==0 && g[beg][i]==1)

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 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 1 ms 212 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 174 ms 25892 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 1 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 1 ms 212 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 174 ms 25892 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
12 Correct 7 ms 1328 KB Output is correct
13 Correct 173 ms 25996 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 76 ms 16000 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 46 ms 6708 KB Output is correct
21 Correct 171 ms 25932 KB Output is correct
22 Correct 177 ms 25984 KB Output is correct
23 Correct 187 ms 26000 KB Output is correct
24 Correct 171 ms 25988 KB Output is correct
25 Correct 71 ms 16016 KB Output is correct
26 Correct 66 ms 16008 KB Output is correct
27 Correct 178 ms 25920 KB Output is correct
28 Correct 170 ms 25932 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 1 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 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 8 ms 1236 KB Output is correct
9 Correct 168 ms 25984 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 168 ms 25984 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 81 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 0 ms 212 KB Output is correct
21 Correct 43 ms 6676 KB Output is correct
22 Correct 174 ms 26004 KB Output is correct
23 Correct 167 ms 25988 KB Output is correct
24 Correct 182 ms 25988 KB Output is correct
25 Correct 69 ms 16016 KB Output is correct
26 Correct 71 ms 16012 KB Output is correct
27 Correct 177 ms 25900 KB Output is correct
28 Correct 182 ms 25932 KB Output is correct
29 Correct 70 ms 16012 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 1 ms 212 KB Output is correct
4 Correct 47 ms 6660 KB Output is correct
5 Correct 178 ms 26188 KB Output is correct
6 Correct 174 ms 25996 KB Output is correct
7 Correct 179 ms 26000 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 48 ms 6752 KB Output is correct
10 Correct 170 ms 25896 KB Output is correct
11 Correct 186 ms 25976 KB Output is correct
12 Correct 182 ms 25988 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 46 ms 6660 KB Output is correct
17 Correct 169 ms 25932 KB Output is correct
18 Correct 175 ms 26028 KB Output is correct
19 Correct 175 ms 25984 KB Output is correct
20 Correct 170 ms 25900 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 1 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 1 ms 212 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 174 ms 25892 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
12 Correct 7 ms 1328 KB Output is correct
13 Correct 173 ms 25996 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 76 ms 16000 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 46 ms 6708 KB Output is correct
21 Correct 171 ms 25932 KB Output is correct
22 Correct 177 ms 25984 KB Output is correct
23 Correct 187 ms 26000 KB Output is correct
24 Correct 171 ms 25988 KB Output is correct
25 Correct 71 ms 16016 KB Output is correct
26 Correct 66 ms 16008 KB Output is correct
27 Correct 178 ms 25920 KB Output is correct
28 Correct 170 ms 25932 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 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 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 8 ms 1236 KB Output is correct
37 Correct 168 ms 25984 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 168 ms 25984 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 4 ms 852 KB Output is correct
45 Correct 81 ms 16004 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 43 ms 6676 KB Output is correct
50 Correct 174 ms 26004 KB Output is correct
51 Correct 167 ms 25988 KB Output is correct
52 Correct 182 ms 25988 KB Output is correct
53 Correct 69 ms 16016 KB Output is correct
54 Correct 71 ms 16012 KB Output is correct
55 Correct 177 ms 25900 KB Output is correct
56 Correct 182 ms 25932 KB Output is correct
57 Correct 70 ms 16012 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 6 ms 852 KB Output is correct
61 Correct 81 ms 16004 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 47 ms 6732 KB Output is correct
66 Correct 73 ms 16076 KB Output is correct
67 Correct 77 ms 16004 KB Output is correct
68 Correct 69 ms 16012 KB Output is correct
69 Correct 68 ms 16016 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 1 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 1 ms 212 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 174 ms 25892 KB Output is correct
8 Correct 0 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 1 ms 212 KB Output is correct
12 Correct 7 ms 1328 KB Output is correct
13 Correct 173 ms 25996 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 4 ms 852 KB Output is correct
17 Correct 76 ms 16000 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 46 ms 6708 KB Output is correct
21 Correct 171 ms 25932 KB Output is correct
22 Correct 177 ms 25984 KB Output is correct
23 Correct 187 ms 26000 KB Output is correct
24 Correct 171 ms 25988 KB Output is correct
25 Correct 71 ms 16016 KB Output is correct
26 Correct 66 ms 16008 KB Output is correct
27 Correct 178 ms 25920 KB Output is correct
28 Correct 170 ms 25932 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 1 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 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 8 ms 1236 KB Output is correct
37 Correct 168 ms 25984 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 168 ms 25984 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 4 ms 852 KB Output is correct
45 Correct 81 ms 16004 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 43 ms 6676 KB Output is correct
50 Correct 174 ms 26004 KB Output is correct
51 Correct 167 ms 25988 KB Output is correct
52 Correct 182 ms 25988 KB Output is correct
53 Correct 69 ms 16016 KB Output is correct
54 Correct 71 ms 16012 KB Output is correct
55 Correct 177 ms 25900 KB Output is correct
56 Correct 182 ms 25932 KB Output is correct
57 Correct 70 ms 16012 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 47 ms 6660 KB Output is correct
62 Correct 178 ms 26188 KB Output is correct
63 Correct 174 ms 25996 KB Output is correct
64 Correct 179 ms 26000 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 48 ms 6752 KB Output is correct
67 Correct 170 ms 25896 KB Output is correct
68 Correct 186 ms 25976 KB Output is correct
69 Correct 182 ms 25988 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 46 ms 6660 KB Output is correct
74 Correct 169 ms 25932 KB Output is correct
75 Correct 175 ms 26028 KB Output is correct
76 Correct 175 ms 25984 KB Output is correct
77 Correct 170 ms 25900 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 6 ms 852 KB Output is correct
81 Correct 81 ms 16004 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 47 ms 6732 KB Output is correct
86 Correct 73 ms 16076 KB Output is correct
87 Correct 77 ms 16004 KB Output is correct
88 Correct 69 ms 16012 KB Output is correct
89 Correct 68 ms 16016 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 1 ms 212 KB Output is correct
92 Correct 4 ms 852 KB Output is correct
93 Correct 73 ms 16076 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 1 ms 296 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 18 ms 4720 KB Output is correct
98 Correct 70 ms 17916 KB Output is correct
99 Correct 70 ms 18036 KB Output is correct
100 Correct 69 ms 17996 KB Output is correct
101 Correct 67 ms 18036 KB Output is correct
102 Correct 68 ms 18032 KB Output is correct
103 Correct 67 ms 17984 KB Output is correct
104 Correct 68 ms 18036 KB Output is correct
105 Correct 76 ms 18032 KB Output is correct