oj.uz

Submission #952772

# Submission time Handle Problem Language Result Execution time Memory
952772 2024-03-24T19:01:37 Z emad234 Connecting Supertrees (IOI20_supertrees) C++17
56 / 100
 280 ms 72932 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
#define ll long long
#define F first
#define S second
#define pii pair<ll, ll>
const ll mod = 1e9 + 7;
const ll mxN = 1e6 + 5;
using namespace std;

int dsu[mxN];
int find(int x) { return dsu[x] == x ? x : dsu[x] = find(dsu[x]); }
void merge(int a, int b) { dsu[find(b)] = find(a); }
int construct(std::vector<std::vector<int>> p)
{
	vector<vector<int>> b;
	int n = p.size(), m = p.size();
	b.resize(n);
	for (int i = 0; i < n; i++)
		dsu[i] = i;
	for (int i = 0; i < n; i++)
		b[i].resize(m);
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < m; j++)
		{
			if (i == j)
				continue;
			if (p[i][j] == 1)
			{
				if (find(i) != find(j))
				{
					merge(i, j);
					b[i][j] = 1;
					b[j][i] = 1;
				}
			}
		}
	}
	vector<vector<int>> ty;
	vector<set<int>> v;
	v.resize(n);
	ty.resize(n);
	for (int i = 0; i < n; i++)
	{
		ty[i].resize(n);
		for (int j = 0; j < m; j++)
		{
			ty[i][j] = -1;
		}
	}
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < m; j++)
		{
			if (i == j)
				continue;
			if (find(i) == find(j))
			{
				if (p[i][j] != 1)
					return 0;
			}
			else
			{
				if (ty[i][j] != -1 && p[i][j] != ty[i][j])
					return 0;
				if (p[i][j] == 2)
					v[find(i)].insert(find(j));
				ty[i][j] = p[i][j];
			}
		}
	}
	vector<bool> vis(n);
	for (int i = 0; i < n; i++)
	{
		int prv = -1;
		if (vis[i])
			continue;
		if (v[i].size() == 1)
			return 0;
		v[i].insert(i);
		for(auto x : v[i]){
			for(int j = 0;j < n;j++){
				if(x == j) continue;
				if(v[i].find(j) != v[i].end() && p[x][j] != 2) return 0;
			}
		}
		for (auto x : v[i])
		{
			vis[x] = 1;
			if (prv != -1)
			{
				b[x][prv] = 1;
				b[prv][x] = 1;
			}
			prv = x;
		}
		if (v[i].size() >= 2)
		{
			b[*v[i].begin()][*v[i].rbegin()] = 1;
			b[*v[i].rbegin()][*v[i].begin()] = 1;
		}
	}
	build(b);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 7 ms 1368 KB Output is correct
7 Correct 155 ms 26144 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 7 ms 1368 KB Output is correct
7 Correct 155 ms 26144 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 151 ms 26196 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 864 KB Output is correct
17 Correct 71 ms 16208 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 6736 KB Output is correct
21 Correct 155 ms 26196 KB Output is correct
22 Correct 151 ms 26040 KB Output is correct
23 Correct 160 ms 26028 KB Output is correct
24 Correct 172 ms 26128 KB Output is correct
25 Correct 61 ms 16152 KB Output is correct
26 Correct 61 ms 16164 KB Output is correct
27 Correct 164 ms 26204 KB Output is correct
28 Correct 150 ms 26192 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 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 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 6 ms 1372 KB Output is correct
9 Correct 150 ms 26144 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 10 ms 3176 KB Output is correct
13 Correct 280 ms 72932 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 5 ms 1880 KB Output is correct
17 Correct 122 ms 41492 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 392 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 40 ms 7628 KB Output is correct
22 Correct 172 ms 32596 KB Output is correct
23 Correct 156 ms 28244 KB Output is correct
24 Correct 220 ms 51536 KB Output is correct
25 Correct 65 ms 18264 KB Output is correct
26 Incorrect 177 ms 32848 KB Answer gives possible 1 while actual possible 0
27 Halted 0 ms 0 KB -

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 0 ms 348 KB Output is correct
4 Correct 41 ms 6924 KB Output is correct
5 Correct 152 ms 26192 KB Output is correct
6 Correct 156 ms 26088 KB Output is correct
7 Correct 156 ms 26172 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 42 ms 7088 KB Output is correct
10 Correct 176 ms 30936 KB Output is correct
11 Correct 163 ms 26192 KB Output is correct
12 Correct 221 ms 49436 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 44 ms 6896 KB Output is correct
17 Correct 172 ms 32596 KB Output is correct
18 Correct 169 ms 30032 KB Output is correct
19 Correct 158 ms 29016 KB Output is correct
20 Correct 153 ms 28164 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 7 ms 1368 KB Output is correct
7 Correct 155 ms 26144 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 151 ms 26196 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 864 KB Output is correct
17 Correct 71 ms 16208 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 6736 KB Output is correct
21 Correct 155 ms 26196 KB Output is correct
22 Correct 151 ms 26040 KB Output is correct
23 Correct 160 ms 26028 KB Output is correct
24 Correct 172 ms 26128 KB Output is correct
25 Correct 61 ms 16152 KB Output is correct
26 Correct 61 ms 16164 KB Output is correct
27 Correct 164 ms 26204 KB Output is correct
28 Correct 150 ms 26192 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 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 1 ms 348 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 6 ms 1372 KB Output is correct
37 Correct 150 ms 26144 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 10 ms 3176 KB Output is correct
41 Correct 280 ms 72932 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 5 ms 1880 KB Output is correct
45 Correct 122 ms 41492 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 392 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 40 ms 7628 KB Output is correct
50 Correct 172 ms 32596 KB Output is correct
51 Correct 156 ms 28244 KB Output is correct
52 Correct 220 ms 51536 KB Output is correct
53 Correct 65 ms 18264 KB Output is correct
54 Incorrect 177 ms 32848 KB Answer gives possible 1 while actual possible 0
55 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 7 ms 1368 KB Output is correct
7 Correct 155 ms 26144 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1368 KB Output is correct
13 Correct 151 ms 26196 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 4 ms 864 KB Output is correct
17 Correct 71 ms 16208 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 39 ms 6736 KB Output is correct
21 Correct 155 ms 26196 KB Output is correct
22 Correct 151 ms 26040 KB Output is correct
23 Correct 160 ms 26028 KB Output is correct
24 Correct 172 ms 26128 KB Output is correct
25 Correct 61 ms 16152 KB Output is correct
26 Correct 61 ms 16164 KB Output is correct
27 Correct 164 ms 26204 KB Output is correct
28 Correct 150 ms 26192 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 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 1 ms 348 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 6 ms 1372 KB Output is correct
37 Correct 150 ms 26144 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 10 ms 3176 KB Output is correct
41 Correct 280 ms 72932 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 0 ms 344 KB Output is correct
44 Correct 5 ms 1880 KB Output is correct
45 Correct 122 ms 41492 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 392 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 40 ms 7628 KB Output is correct
50 Correct 172 ms 32596 KB Output is correct
51 Correct 156 ms 28244 KB Output is correct
52 Correct 220 ms 51536 KB Output is correct
53 Correct 65 ms 18264 KB Output is correct
54 Incorrect 177 ms 32848 KB Answer gives possible 1 while actual possible 0
55 Halted 0 ms 0 KB -