oj.uz

Submission #813034

# Submission time Handle Problem Language Result Execution time Memory
813034 2023-08-07T12:48:56 Z OrazB Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 377 ms 27204 KB 
#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
#define all(x) (x).begin(), (x).end()
#define ll long long int
#define pii pair <int, int>
#define pb push_back
#define ff first
#define ss second

const int N = 1e3+5;
int T, vis[N][N], cur[N], tp[N];
set<int> A[N], B[N];

int F1(int n, int i, vector<vector<int>> p, vector<vector<int>>&b){
	if (A[cur[i]].find(i) != A[cur[i]].end()) return p[tp[i]] == p[i];
	for (int j = 0; j < n; j++){
		if (i == j) continue;
		if (vis[cur[i]][j] != (p[i][j] == 0)) return 0;
		if (p[i][j] == 1){
			tp[j] = i;
			A[cur[i]].insert(j);
			B[cur[i]].erase(j);
			b[i][j] = b[j][i] = 1;
		}
	}
	return 1;
}

void F2(int n, int i, vector<vector<int>> p, vector<vector<int>>&b){
	++T;
	B[T].insert(i);
	for (int j = 0; j < n; j++){
		if (i == j) continue;
		if (p[i][j] == 0) vis[T][j] = 1;
		else{
			cur[j] = T;
			if (p[i][j] == 1){
				tp[j] = i;
				A[T].insert(j);
				b[i][j] = b[j][i] = 1;
			}else B[T].insert(j);
		}
	}
}

// void build(vector<vector<int>> p){
// 	int n = p.size();
// 	for (int i = 0; i < n; i++){
// 		for (int j = 0; j < n; j++) cout << p[i][j] << " ";
// 		cout << '\n';
// 	}
// }

int construct(vector<vector<int>> p){
	int n = p.size();
	vector<vector<int>> b(n, vector<int>(n, 0));
	for (int i = 0; i < n; i++){
		if (count(all(p[i]), 3)) return 0; 
		if (cur[i]){
			if (!F1(n, i, p, b)) return 0;
		}else F2(n, i, p, b);
	}
	for (int i = 1; i <= T; i++){
		if (B[i].size() <= 1) continue;
		if (B[i].size() == 2) return 0;
		int lst = *B[i].rbegin();
		for (auto j : B[i]){
			b[lst][j] = b[j][lst] = 1;
			lst = j;
		}
	}
	build(b);
	return 1;

}

// int main ()
// {
// 	ios::sync_with_stdio(false);
// 	cin.tie(0);
// 	int n;
// 	cin >> n;
// 	vector<vector<int>> p(n, vector<int>(n));
// 	for (int i = 0; i < n; i++){
// 		for (int j = 0; j < n; j++) cin >> p[i][j];
// 	}
// 	cout << construct(p);
// }

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 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 349 ms 22316 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 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 349 ms 22316 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 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 2060 KB Output is correct
13 Correct 357 ms 26028 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 980 KB Output is correct
17 Correct 68 ms 16244 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 70 ms 6128 KB Output is correct
21 Correct 340 ms 22416 KB Output is correct
22 Correct 352 ms 23824 KB Output is correct
23 Correct 347 ms 22148 KB Output is correct
24 Correct 332 ms 25888 KB Output is correct
25 Correct 212 ms 16204 KB Output is correct
26 Correct 146 ms 17296 KB Output is correct
27 Correct 340 ms 22140 KB Output is correct
28 Correct 377 ms 25852 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 340 KB Output is correct
5 Correct 1 ms 396 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 9 ms 2116 KB Output is correct
9 Correct 343 ms 27204 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 1308 KB Output is correct
13 Correct 335 ms 23280 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 1044 KB Output is correct
17 Correct 70 ms 17460 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 69 ms 6572 KB Output is correct
22 Correct 340 ms 23384 KB Output is correct
23 Correct 335 ms 24044 KB Output is correct
24 Correct 364 ms 23256 KB Output is correct
25 Correct 255 ms 21116 KB Output is correct
26 Correct 75 ms 17356 KB Output is correct
27 Correct 346 ms 24108 KB Output is correct
28 Correct 346 ms 23296 KB Output is correct
29 Correct 293 ms 21024 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 72 ms 6072 KB Output is correct
5 Correct 336 ms 22244 KB Output is correct
6 Correct 329 ms 23736 KB Output is correct
7 Correct 343 ms 22116 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 70 ms 6120 KB Output is correct
10 Correct 373 ms 22260 KB Output is correct
11 Correct 347 ms 22920 KB Output is correct
12 Correct 371 ms 22188 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 78 ms 6160 KB Output is correct
17 Correct 345 ms 22248 KB Output is correct
18 Correct 339 ms 22236 KB Output is correct
19 Correct 372 ms 22264 KB Output is correct
20 Correct 343 ms 25916 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 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 349 ms 22316 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 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 2060 KB Output is correct
13 Correct 357 ms 26028 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 980 KB Output is correct
17 Correct 68 ms 16244 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 70 ms 6128 KB Output is correct
21 Correct 340 ms 22416 KB Output is correct
22 Correct 352 ms 23824 KB Output is correct
23 Correct 347 ms 22148 KB Output is correct
24 Correct 332 ms 25888 KB Output is correct
25 Correct 212 ms 16204 KB Output is correct
26 Correct 146 ms 17296 KB Output is correct
27 Correct 340 ms 22140 KB Output is correct
28 Correct 377 ms 25852 KB Output is correct
29 Correct 1 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 1 ms 340 KB Output is correct
33 Correct 1 ms 396 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 9 ms 2116 KB Output is correct
37 Correct 343 ms 27204 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 8 ms 1308 KB Output is correct
41 Correct 335 ms 23280 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 3 ms 1044 KB Output is correct
45 Correct 70 ms 17460 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 69 ms 6572 KB Output is correct
50 Correct 340 ms 23384 KB Output is correct
51 Correct 335 ms 24044 KB Output is correct
52 Correct 364 ms 23256 KB Output is correct
53 Correct 255 ms 21116 KB Output is correct
54 Correct 75 ms 17356 KB Output is correct
55 Correct 346 ms 24108 KB Output is correct
56 Correct 346 ms 23296 KB Output is correct
57 Correct 293 ms 21024 KB Output is correct
58 Correct 1 ms 380 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 3 ms 1108 KB Output is correct
61 Correct 70 ms 17328 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 72 ms 6632 KB Output is correct
66 Correct 75 ms 18136 KB Output is correct
67 Correct 72 ms 18116 KB Output is correct
68 Correct 137 ms 18240 KB Output is correct
69 Correct 246 ms 21880 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 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 349 ms 22316 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 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 2060 KB Output is correct
13 Correct 357 ms 26028 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 980 KB Output is correct
17 Correct 68 ms 16244 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 70 ms 6128 KB Output is correct
21 Correct 340 ms 22416 KB Output is correct
22 Correct 352 ms 23824 KB Output is correct
23 Correct 347 ms 22148 KB Output is correct
24 Correct 332 ms 25888 KB Output is correct
25 Correct 212 ms 16204 KB Output is correct
26 Correct 146 ms 17296 KB Output is correct
27 Correct 340 ms 22140 KB Output is correct
28 Correct 377 ms 25852 KB Output is correct
29 Correct 1 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 1 ms 340 KB Output is correct
33 Correct 1 ms 396 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 9 ms 2116 KB Output is correct
37 Correct 343 ms 27204 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 8 ms 1308 KB Output is correct
41 Correct 335 ms 23280 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 3 ms 1044 KB Output is correct
45 Correct 70 ms 17460 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 69 ms 6572 KB Output is correct
50 Correct 340 ms 23384 KB Output is correct
51 Correct 335 ms 24044 KB Output is correct
52 Correct 364 ms 23256 KB Output is correct
53 Correct 255 ms 21116 KB Output is correct
54 Correct 75 ms 17356 KB Output is correct
55 Correct 346 ms 24108 KB Output is correct
56 Correct 346 ms 23296 KB Output is correct
57 Correct 293 ms 21024 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 72 ms 6072 KB Output is correct
62 Correct 336 ms 22244 KB Output is correct
63 Correct 329 ms 23736 KB Output is correct
64 Correct 343 ms 22116 KB Output is correct
65 Correct 0 ms 340 KB Output is correct
66 Correct 70 ms 6120 KB Output is correct
67 Correct 373 ms 22260 KB Output is correct
68 Correct 347 ms 22920 KB Output is correct
69 Correct 371 ms 22188 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 78 ms 6160 KB Output is correct
74 Correct 345 ms 22248 KB Output is correct
75 Correct 339 ms 22236 KB Output is correct
76 Correct 372 ms 22264 KB Output is correct
77 Correct 343 ms 25916 KB Output is correct
78 Correct 1 ms 380 KB Output is correct
79 Correct 1 ms 340 KB Output is correct
80 Correct 3 ms 1108 KB Output is correct
81 Correct 70 ms 17328 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 72 ms 6632 KB Output is correct
86 Correct 75 ms 18136 KB Output is correct
87 Correct 72 ms 18116 KB Output is correct
88 Correct 137 ms 18240 KB Output is correct
89 Correct 246 ms 21880 KB Output is correct
90 Correct 1 ms 340 KB Output is correct
91 Correct 1 ms 340 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 66 ms 14160 KB Output is correct
94 Correct 0 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 19 ms 4952 KB Output is correct
98 Correct 76 ms 18216 KB Output is correct
99 Correct 99 ms 18220 KB Output is correct
100 Correct 100 ms 18244 KB Output is correct
101 Correct 132 ms 19356 KB Output is correct
102 Correct 65 ms 14144 KB Output is correct
103 Correct 65 ms 14152 KB Output is correct
104 Correct 63 ms 14152 KB Output is correct
105 Correct 74 ms 14068 KB Output is correct