oj.uz

Submission #300358

# Submission time Handle Problem Language Result Execution time Memory
300358 2020-09-17T05:49:51 Z junseo Connecting Supertrees (IOI20_supertrees) C++17
96 / 100
 267 ms 22364 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
#define fi first
#define se second
#define eb emplace_back
#define all(v) (v).begin(), (v).end()
#define rmin(r, x) r = min(r, x)
#define rmax(r, x) r = max(r, x)
#define ends ' '
#define endl '\n'
#define fastio ios_base::sync_with_stdio(0), cin.tie(0)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int maxn = 1e3 + 10;

int n, pa[maxn];
bool chk[maxn];
vector<vector<int>> b;

int fnd(int x) { return (pa[x] < 0 ? x : pa[x] = fnd(pa[x])); }
void uni(int a, int b) {
	a = fnd(a), b = fnd(b);
	if(a == b)	return;
	pa[a] = b;
}

int construct(vector<std::vector<int>> p) {
	memset(pa, -1, sizeof(pa));
	n = p.size();
	b.resize(n);
	for(int i = 0; i < n; ++i)	b[i].resize(n);

	for(int i = 0; i < n; ++i) for(int j = i + 1; j < n; ++j) if(p[i][j] == 1 && fnd(i) != fnd(j)) {
		uni(i, j);
		b[i][j] = b[j][i] = 1;
	}

	for(int i = 0; i < n; ++i) if(!chk[i] && i == fnd(i)) {
		vector<int> v;
		for(int j = i + 1; j < n; ++j) if(p[i][j] == 2)	v.eb(fnd(j));
		sort(all(v));
		v.erase(unique(all(v)), v.end());

		if(v.empty())		continue;
		if(v.size() == 1)	return 0;

		chk[i] = true;
		int prev = i;
		for(auto& j : v) {
			chk[j] = true;
			uni(prev, j);
			b[prev][j] = b[j][prev] = 1;
			prev = j;
		}
		b[prev][i] = b[i][prev] = 1;
	}

	for(int i = 0; i < n; ++i) for(int j = i + 1; j < n; ++j) {
		if(p[i][j] && fnd(i) != fnd(j))		return 0;
		if(!p[i][j] && fnd(i) == fnd(j))	return 0;
	}
	build(b);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 10 ms 1152 KB Output is correct
7 Correct 267 ms 22168 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 10 ms 1152 KB Output is correct
7 Correct 267 ms 22168 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 12 ms 1152 KB Output is correct
13 Correct 238 ms 22188 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 115 ms 12152 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 61 ms 5804 KB Output is correct
21 Correct 247 ms 22080 KB Output is correct
22 Correct 242 ms 22136 KB Output is correct
23 Correct 258 ms 22136 KB Output is correct
24 Correct 239 ms 22136 KB Output is correct
25 Correct 105 ms 12120 KB Output is correct
26 Correct 102 ms 12124 KB Output is correct
27 Correct 259 ms 22364 KB Output is correct
28 Correct 248 ms 22160 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 10 ms 1152 KB Output is correct
9 Correct 239 ms 22140 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 288 KB Output is correct
12 Correct 11 ms 1152 KB Output is correct
13 Correct 253 ms 22072 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 113 ms 12244 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 62 ms 5752 KB Output is correct
22 Correct 244 ms 22136 KB Output is correct
23 Correct 240 ms 22164 KB Output is correct
24 Correct 252 ms 22136 KB Output is correct
25 Correct 102 ms 12152 KB Output is correct
26 Correct 115 ms 12184 KB Output is correct
27 Correct 236 ms 22136 KB Output is correct
28 Correct 249 ms 22136 KB Output is correct
29 Correct 101 ms 12116 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 63 ms 5880 KB Output is correct
5 Correct 240 ms 22136 KB Output is correct
6 Correct 241 ms 22064 KB Output is correct
7 Correct 254 ms 22080 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 61 ms 5836 KB Output is correct
10 Correct 246 ms 22104 KB Output is correct
11 Correct 247 ms 22136 KB Output is correct
12 Correct 261 ms 22136 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 1 ms 360 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 60 ms 5764 KB Output is correct
17 Correct 241 ms 22104 KB Output is correct
18 Correct 249 ms 22136 KB Output is correct
19 Correct 247 ms 22136 KB Output is correct
20 Correct 237 ms 22136 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 10 ms 1152 KB Output is correct
7 Correct 267 ms 22168 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 12 ms 1152 KB Output is correct
13 Correct 238 ms 22188 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 115 ms 12152 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 61 ms 5804 KB Output is correct
21 Correct 247 ms 22080 KB Output is correct
22 Correct 242 ms 22136 KB Output is correct
23 Correct 258 ms 22136 KB Output is correct
24 Correct 239 ms 22136 KB Output is correct
25 Correct 105 ms 12120 KB Output is correct
26 Correct 102 ms 12124 KB Output is correct
27 Correct 259 ms 22364 KB Output is correct
28 Correct 248 ms 22160 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 10 ms 1152 KB Output is correct
37 Correct 239 ms 22140 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 288 KB Output is correct
40 Correct 11 ms 1152 KB Output is correct
41 Correct 253 ms 22072 KB Output is correct
42 Correct 1 ms 256 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 5 ms 768 KB Output is correct
45 Correct 113 ms 12244 KB Output is correct
46 Correct 1 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 62 ms 5752 KB Output is correct
50 Correct 244 ms 22136 KB Output is correct
51 Correct 240 ms 22164 KB Output is correct
52 Correct 252 ms 22136 KB Output is correct
53 Correct 102 ms 12152 KB Output is correct
54 Correct 115 ms 12184 KB Output is correct
55 Correct 236 ms 22136 KB Output is correct
56 Correct 249 ms 22136 KB Output is correct
57 Correct 101 ms 12116 KB Output is correct
58 Correct 1 ms 256 KB Output is correct
59 Correct 1 ms 256 KB Output is correct
60 Correct 5 ms 768 KB Output is correct
61 Correct 114 ms 12128 KB Output is correct
62 Correct 1 ms 256 KB Output is correct
63 Correct 1 ms 256 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 61 ms 6052 KB Output is correct
66 Correct 103 ms 12152 KB Output is correct
67 Correct 110 ms 12120 KB Output is correct
68 Correct 101 ms 12152 KB Output is correct
69 Correct 106 ms 12152 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 10 ms 1152 KB Output is correct
7 Correct 267 ms 22168 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 12 ms 1152 KB Output is correct
13 Correct 238 ms 22188 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 5 ms 768 KB Output is correct
17 Correct 115 ms 12152 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 61 ms 5804 KB Output is correct
21 Correct 247 ms 22080 KB Output is correct
22 Correct 242 ms 22136 KB Output is correct
23 Correct 258 ms 22136 KB Output is correct
24 Correct 239 ms 22136 KB Output is correct
25 Correct 105 ms 12120 KB Output is correct
26 Correct 102 ms 12124 KB Output is correct
27 Correct 259 ms 22364 KB Output is correct
28 Correct 248 ms 22160 KB Output is correct
29 Correct 0 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 1 ms 256 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 10 ms 1152 KB Output is correct
37 Correct 239 ms 22140 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 288 KB Output is correct
40 Correct 11 ms 1152 KB Output is correct
41 Correct 253 ms 22072 KB Output is correct
42 Correct 1 ms 256 KB Output is correct
43 Correct 1 ms 288 KB Output is correct
44 Correct 5 ms 768 KB Output is correct
45 Correct 113 ms 12244 KB Output is correct
46 Correct 1 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 62 ms 5752 KB Output is correct
50 Correct 244 ms 22136 KB Output is correct
51 Correct 240 ms 22164 KB Output is correct
52 Correct 252 ms 22136 KB Output is correct
53 Correct 102 ms 12152 KB Output is correct
54 Correct 115 ms 12184 KB Output is correct
55 Correct 236 ms 22136 KB Output is correct
56 Correct 249 ms 22136 KB Output is correct
57 Correct 101 ms 12116 KB Output is correct
58 Correct 1 ms 256 KB Output is correct
59 Correct 1 ms 256 KB Output is correct
60 Correct 1 ms 256 KB Output is correct
61 Correct 63 ms 5880 KB Output is correct
62 Correct 240 ms 22136 KB Output is correct
63 Correct 241 ms 22064 KB Output is correct
64 Correct 254 ms 22080 KB Output is correct
65 Correct 1 ms 256 KB Output is correct
66 Correct 61 ms 5836 KB Output is correct
67 Correct 246 ms 22104 KB Output is correct
68 Correct 247 ms 22136 KB Output is correct
69 Correct 261 ms 22136 KB Output is correct
70 Correct 0 ms 256 KB Output is correct
71 Correct 1 ms 360 KB Output is correct
72 Correct 1 ms 256 KB Output is correct
73 Correct 60 ms 5764 KB Output is correct
74 Correct 241 ms 22104 KB Output is correct
75 Correct 249 ms 22136 KB Output is correct
76 Correct 247 ms 22136 KB Output is correct
77 Correct 237 ms 22136 KB Output is correct
78 Correct 1 ms 256 KB Output is correct
79 Correct 1 ms 256 KB Output is correct
80 Correct 5 ms 768 KB Output is correct
81 Correct 114 ms 12128 KB Output is correct
82 Correct 1 ms 256 KB Output is correct
83 Correct 1 ms 256 KB Output is correct
84 Correct 1 ms 384 KB Output is correct
85 Correct 61 ms 6052 KB Output is correct
86 Correct 103 ms 12152 KB Output is correct
87 Correct 110 ms 12120 KB Output is correct
88 Correct 101 ms 12152 KB Output is correct
89 Correct 106 ms 12152 KB Output is correct
90 Correct 1 ms 256 KB Output is correct
91 Correct 1 ms 256 KB Output is correct
92 Correct 5 ms 768 KB Output is correct
93 Correct 116 ms 12152 KB Output is correct
94 Correct 1 ms 256 KB Output is correct
95 Correct 1 ms 256 KB Output is correct
96 Correct 1 ms 256 KB Output is correct
97 Correct 26 ms 3328 KB Output is correct
98 Correct 104 ms 12152 KB Output is correct
99 Correct 104 ms 12248 KB Output is correct
100 Correct 107 ms 12152 KB Output is correct
101 Correct 103 ms 12152 KB Output is correct
102 Correct 115 ms 12152 KB Output is correct
103 Correct 111 ms 12152 KB Output is correct
104 Incorrect 252 ms 22136 KB Answer gives possible 1 while actual possible 0
105 Halted 0 ms 0 KB -