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Submission #428651

# Submission time Handle Problem Language Result Execution time Memory
428651 2021-06-15T13:31:28 Z Keshi Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 285 ms 27784 KB 
//In the name of God
#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;

typedef int ll;
typedef pair<ll, ll> pll;

const ll maxn = 2e5 + 100;
const ll mod = 1e9 + 7;
const ll inf = 1e9;

#define fast_io ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define Mp make_pair
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define Sz(x) ll((x).size())

ll v1[maxn], v2[maxn], c[maxn], cc[maxn], t, tt;
vector<ll> vec[maxn];

int construct(vector<vector<int>> p) {
	int n = Sz(p);
	vector<vector<int>> answer(n);
	for(ll i = 0; i < n; i++){
		answer[i].resize(n);
		for(ll j = 0; j < n; j++){
			if(p[i][j] == 3) return 0;
		}
	}
	for(ll i = 0; i < n; i++){
		if(v2[i]) continue;
		if(!v1[i]) c[i] = t++;
		vec[c[i]].pb(i);
		if(v2[i]) continue;
		cc[i] = tt++;
		for(ll j = 0; j < n; j++){
			if(i == j || p[i][j] == 0) continue;
			v1[j] = 1;
			c[j] = c[i];
			if(p[i][j] == 1){
				v2[j] = 1;
				cc[j] = cc[i];
				answer[i][j] = 1;
				answer[j][i] = 1;
			}
		}
		v1[i] = 1;
		v2[i] = 1;
	}
	for(ll i = 0; i < n; i++){
		for(ll j = 0; j < n; j++){
			if((p[i][j] > 0) != (c[i] == c[j])) return 0;
			if((p[i][j] == 1) != (cc[i] == cc[j])) return 0;
		}
	}
	for(ll i = 0; i < t; i++){
		if(Sz(vec[i]) == 2) return 0;
		if(Sz(vec[i]) < 3) continue;
		for(ll j = 0; j + 1 < Sz(vec[i]); j++){
			answer[vec[i][j]][vec[i][j + 1]] = 1;
			answer[vec[i][j + 1]][vec[i][j]] = 1;
		}
		answer[vec[i][0]][vec[i].back()] = 1;
		answer[vec[i].back()][vec[i][0]] = 1;
	}
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 5000 KB Output is correct
5 Correct 3 ms 4996 KB Output is correct
6 Correct 12 ms 5916 KB Output is correct
7 Correct 237 ms 27472 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 5000 KB Output is correct
5 Correct 3 ms 4996 KB Output is correct
6 Correct 12 ms 5916 KB Output is correct
7 Correct 237 ms 27472 KB Output is correct
8 Correct 4 ms 5004 KB Output is correct
9 Correct 4 ms 4996 KB Output is correct
10 Correct 5 ms 4940 KB Output is correct
11 Correct 4 ms 5020 KB Output is correct
12 Correct 16 ms 5960 KB Output is correct
13 Correct 228 ms 27580 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 8 ms 5580 KB Output is correct
17 Correct 102 ms 17616 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4976 KB Output is correct
20 Correct 60 ms 10956 KB Output is correct
21 Correct 224 ms 27512 KB Output is correct
22 Correct 228 ms 27464 KB Output is correct
23 Correct 258 ms 27472 KB Output is correct
24 Correct 284 ms 27784 KB Output is correct
25 Correct 105 ms 17604 KB Output is correct
26 Correct 98 ms 17656 KB Output is correct
27 Correct 229 ms 27452 KB Output is correct
28 Correct 231 ms 27592 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4928 KB Output is correct
2 Correct 4 ms 5000 KB Output is correct
3 Correct 3 ms 5068 KB Output is correct
4 Correct 3 ms 4996 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4996 KB Output is correct
7 Correct 5 ms 4996 KB Output is correct
8 Correct 15 ms 5952 KB Output is correct
9 Correct 228 ms 27536 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 4 ms 4940 KB Output is correct
12 Correct 13 ms 5964 KB Output is correct
13 Correct 236 ms 27556 KB Output is correct
14 Correct 4 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 11 ms 5520 KB Output is correct
17 Correct 112 ms 17580 KB Output is correct
18 Correct 4 ms 4992 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 4 ms 4940 KB Output is correct
21 Correct 60 ms 10956 KB Output is correct
22 Correct 280 ms 27560 KB Output is correct
23 Correct 222 ms 27528 KB Output is correct
24 Correct 243 ms 27552 KB Output is correct
25 Correct 97 ms 17604 KB Output is correct
26 Correct 102 ms 17576 KB Output is correct
27 Correct 228 ms 27620 KB Output is correct
28 Correct 285 ms 27548 KB Output is correct
29 Correct 112 ms 17652 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 64 ms 10996 KB Output is correct
5 Correct 224 ms 27560 KB Output is correct
6 Correct 233 ms 27460 KB Output is correct
7 Correct 239 ms 27556 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 62 ms 10988 KB Output is correct
10 Correct 233 ms 27492 KB Output is correct
11 Correct 229 ms 27600 KB Output is correct
12 Correct 236 ms 27460 KB Output is correct
13 Correct 4 ms 4940 KB Output is correct
14 Correct 4 ms 5004 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 82 ms 10944 KB Output is correct
17 Correct 234 ms 27492 KB Output is correct
18 Correct 237 ms 27568 KB Output is correct
19 Correct 238 ms 27480 KB Output is correct
20 Correct 228 ms 27524 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 5000 KB Output is correct
5 Correct 3 ms 4996 KB Output is correct
6 Correct 12 ms 5916 KB Output is correct
7 Correct 237 ms 27472 KB Output is correct
8 Correct 4 ms 5004 KB Output is correct
9 Correct 4 ms 4996 KB Output is correct
10 Correct 5 ms 4940 KB Output is correct
11 Correct 4 ms 5020 KB Output is correct
12 Correct 16 ms 5960 KB Output is correct
13 Correct 228 ms 27580 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 8 ms 5580 KB Output is correct
17 Correct 102 ms 17616 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4976 KB Output is correct
20 Correct 60 ms 10956 KB Output is correct
21 Correct 224 ms 27512 KB Output is correct
22 Correct 228 ms 27464 KB Output is correct
23 Correct 258 ms 27472 KB Output is correct
24 Correct 284 ms 27784 KB Output is correct
25 Correct 105 ms 17604 KB Output is correct
26 Correct 98 ms 17656 KB Output is correct
27 Correct 229 ms 27452 KB Output is correct
28 Correct 231 ms 27592 KB Output is correct
29 Correct 3 ms 4928 KB Output is correct
30 Correct 4 ms 5000 KB Output is correct
31 Correct 3 ms 5068 KB Output is correct
32 Correct 3 ms 4996 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 4 ms 4996 KB Output is correct
35 Correct 5 ms 4996 KB Output is correct
36 Correct 15 ms 5952 KB Output is correct
37 Correct 228 ms 27536 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 4 ms 4940 KB Output is correct
40 Correct 13 ms 5964 KB Output is correct
41 Correct 236 ms 27556 KB Output is correct
42 Correct 4 ms 4940 KB Output is correct
43 Correct 3 ms 4940 KB Output is correct
44 Correct 11 ms 5520 KB Output is correct
45 Correct 112 ms 17580 KB Output is correct
46 Correct 4 ms 4992 KB Output is correct
47 Correct 3 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 60 ms 10956 KB Output is correct
50 Correct 280 ms 27560 KB Output is correct
51 Correct 222 ms 27528 KB Output is correct
52 Correct 243 ms 27552 KB Output is correct
53 Correct 97 ms 17604 KB Output is correct
54 Correct 102 ms 17576 KB Output is correct
55 Correct 228 ms 27620 KB Output is correct
56 Correct 285 ms 27548 KB Output is correct
57 Correct 112 ms 17652 KB Output is correct
58 Correct 3 ms 4940 KB Output is correct
59 Correct 3 ms 4900 KB Output is correct
60 Correct 7 ms 5580 KB Output is correct
61 Correct 110 ms 17656 KB Output is correct
62 Correct 4 ms 4940 KB Output is correct
63 Correct 4 ms 4996 KB Output is correct
64 Correct 4 ms 4940 KB Output is correct
65 Correct 63 ms 10976 KB Output is correct
66 Correct 106 ms 17736 KB Output is correct
67 Correct 97 ms 17604 KB Output is correct
68 Correct 111 ms 17532 KB Output is correct
69 Correct 99 ms 17652 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4996 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 5000 KB Output is correct
5 Correct 3 ms 4996 KB Output is correct
6 Correct 12 ms 5916 KB Output is correct
7 Correct 237 ms 27472 KB Output is correct
8 Correct 4 ms 5004 KB Output is correct
9 Correct 4 ms 4996 KB Output is correct
10 Correct 5 ms 4940 KB Output is correct
11 Correct 4 ms 5020 KB Output is correct
12 Correct 16 ms 5960 KB Output is correct
13 Correct 228 ms 27580 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 4 ms 4940 KB Output is correct
16 Correct 8 ms 5580 KB Output is correct
17 Correct 102 ms 17616 KB Output is correct
18 Correct 4 ms 4940 KB Output is correct
19 Correct 3 ms 4976 KB Output is correct
20 Correct 60 ms 10956 KB Output is correct
21 Correct 224 ms 27512 KB Output is correct
22 Correct 228 ms 27464 KB Output is correct
23 Correct 258 ms 27472 KB Output is correct
24 Correct 284 ms 27784 KB Output is correct
25 Correct 105 ms 17604 KB Output is correct
26 Correct 98 ms 17656 KB Output is correct
27 Correct 229 ms 27452 KB Output is correct
28 Correct 231 ms 27592 KB Output is correct
29 Correct 3 ms 4928 KB Output is correct
30 Correct 4 ms 5000 KB Output is correct
31 Correct 3 ms 5068 KB Output is correct
32 Correct 3 ms 4996 KB Output is correct
33 Correct 4 ms 4940 KB Output is correct
34 Correct 4 ms 4996 KB Output is correct
35 Correct 5 ms 4996 KB Output is correct
36 Correct 15 ms 5952 KB Output is correct
37 Correct 228 ms 27536 KB Output is correct
38 Correct 3 ms 4940 KB Output is correct
39 Correct 4 ms 4940 KB Output is correct
40 Correct 13 ms 5964 KB Output is correct
41 Correct 236 ms 27556 KB Output is correct
42 Correct 4 ms 4940 KB Output is correct
43 Correct 3 ms 4940 KB Output is correct
44 Correct 11 ms 5520 KB Output is correct
45 Correct 112 ms 17580 KB Output is correct
46 Correct 4 ms 4992 KB Output is correct
47 Correct 3 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 60 ms 10956 KB Output is correct
50 Correct 280 ms 27560 KB Output is correct
51 Correct 222 ms 27528 KB Output is correct
52 Correct 243 ms 27552 KB Output is correct
53 Correct 97 ms 17604 KB Output is correct
54 Correct 102 ms 17576 KB Output is correct
55 Correct 228 ms 27620 KB Output is correct
56 Correct 285 ms 27548 KB Output is correct
57 Correct 112 ms 17652 KB Output is correct
58 Correct 3 ms 4940 KB Output is correct
59 Correct 4 ms 4940 KB Output is correct
60 Correct 5 ms 4940 KB Output is correct
61 Correct 64 ms 10996 KB Output is correct
62 Correct 224 ms 27560 KB Output is correct
63 Correct 233 ms 27460 KB Output is correct
64 Correct 239 ms 27556 KB Output is correct
65 Correct 3 ms 4940 KB Output is correct
66 Correct 62 ms 10988 KB Output is correct
67 Correct 233 ms 27492 KB Output is correct
68 Correct 229 ms 27600 KB Output is correct
69 Correct 236 ms 27460 KB Output is correct
70 Correct 4 ms 4940 KB Output is correct
71 Correct 4 ms 5004 KB Output is correct
72 Correct 4 ms 4940 KB Output is correct
73 Correct 82 ms 10944 KB Output is correct
74 Correct 234 ms 27492 KB Output is correct
75 Correct 237 ms 27568 KB Output is correct
76 Correct 238 ms 27480 KB Output is correct
77 Correct 228 ms 27524 KB Output is correct
78 Correct 3 ms 4940 KB Output is correct
79 Correct 3 ms 4900 KB Output is correct
80 Correct 7 ms 5580 KB Output is correct
81 Correct 110 ms 17656 KB Output is correct
82 Correct 4 ms 4940 KB Output is correct
83 Correct 4 ms 4996 KB Output is correct
84 Correct 4 ms 4940 KB Output is correct
85 Correct 63 ms 10976 KB Output is correct
86 Correct 106 ms 17736 KB Output is correct
87 Correct 97 ms 17604 KB Output is correct
88 Correct 111 ms 17532 KB Output is correct
89 Correct 99 ms 17652 KB Output is correct
90 Correct 3 ms 4940 KB Output is correct
91 Correct 4 ms 4940 KB Output is correct
92 Correct 9 ms 5324 KB Output is correct
93 Correct 96 ms 13636 KB Output is correct
94 Correct 4 ms 4940 KB Output is correct
95 Correct 4 ms 5040 KB Output is correct
96 Correct 3 ms 4940 KB Output is correct
97 Correct 27 ms 7492 KB Output is correct
98 Correct 95 ms 13824 KB Output is correct
99 Correct 95 ms 14252 KB Output is correct
100 Correct 93 ms 14004 KB Output is correct
101 Correct 94 ms 14996 KB Output is correct
102 Correct 115 ms 13768 KB Output is correct
103 Correct 98 ms 13804 KB Output is correct
104 Correct 91 ms 13684 KB Output is correct
105 Correct 97 ms 13636 KB Output is correct