oj.uz

Submission #831951

# Submission time Handle Problem Language Result Execution time Memory
831951 2023-08-20T18:32:05 Z gesgha Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 207 ms 24056 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
 
#define fr(i, a, b) for(int i = a; i <= b; i++)
#define rf(i, a, b) for(int i = a; i >= b; i--)
#define fe(x, y) for (auto& x : y)
 
#define fi first
#define se second
#define pb push_back
 
#define all(x) x.begin(), x.end()
#define pw(x) (1LL << (x))
#define sz(x) (int)x.size()
 
using namespace std;
 
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define fbo find_by_order
#define ook order_of_key
template <typename T>
using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
 
template <typename T>
using ve = vector <T>;
 
template <typename T>
bool umx (T& a, T b) { return a < b ? a = b, 1 : 0; }
 
template <typename T>
bool umn (T& a, T b) { return a > b ? a = b, 1 : 0; }
 
using ll = long long;
using ld = long double;
using pll = pair <ll, ll>;
using pii = pair <int, int>;
using ull = unsigned long long;
 
const int oo = 1e9;
const ll OO = 1e18;
const int N = 1e6 + 10;
const int M = 3e3 + 100;
const int mod = 1e9 + 7;
const bool TEST = 1;

int cnt[M][4];

int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<vector<int>> answer;
	for (int i = 0; i < n; i++) {
		vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			cnt[i][p[i][j]]++;
		}
	}
	ve <bool> vis(n, 0);
	for (int i = 0; i < n; i++) {
		if (vis[i]) continue;
		ve <int> ids;
		bool w2 = 0;
		for (int j = 0; j < n; j++) if (p[i][j]) {
			ids.pb(j);
			if (vis[j]) return 0;
			w2 |= (p[i][j] == 2);
		}
		for (int i = 0; i < sz(ids); i++) {
			for (int j = 0; j < sz(ids); j++) if (!p[ids[i]][ids[j]]) return 0;
		}
		if (w2) {
			ve <ve <int>> palki;
			ve <bool> used(n);
			for (auto x : ids) {
				if (used[x]) continue;
				ve <int> palka;
				for (int j = 0; j < n; j++) {
					if (p[x][j] == 1) {
						palka.pb(j);
						if (used[j]) return 0;
					}
				}
				palki.pb(palka);
				for (int j = 0; j < sz(palka); j++) used[palka[j]] = 1;
				for (int i = 0; i < sz(palka) - 1; i++) {
					answer[palka[i]][palka[i + 1]] = 1;
					answer[palka[i + 1]][palka[i]] = 1;
				}
			}
			for (int i = 0; i < sz(palki); i++) {
				for (auto x : palki[i]) {
					if (cnt[x][1] != sz(palki[i])) return 0;
					if (cnt[x][0] != n - sz(ids)) return 0;
					if (cnt[x][2] != sz(ids) - sz(palki[i]))return 0;
					for (auto y : palki[i]) if (p[x][y] != 1) return 0;
				}
			}
			for (int i = 0; i < sz(palki) - 1; i++) {
				answer[palki[i][0]][palki[i + 1][0]] = 1;
				answer[palki[i + 1][0]][palki[i][0]] = 1;
			}
			if (sz(ids) <= 2) return 0;
			answer[palki[0][0]][palki[sz(palki) - 1][0]] = 1;
			answer[palki[sz(palki) - 1][0]][palki[0][0]] = 1;
			
		} else {
			for (int i = 0; i < sz(ids); i++) {
				if (cnt[ids[i]][1] != sz(ids)) return 0;
				if (cnt[ids[i]][0] != n - sz(ids)) return 0;
				for (int j = 0; j < sz(ids); j++) if (p[ids[i]][ids[j]] != 1) return 0;
			}
			for (int i = 0; i < sz(ids) - 1; i++) {
				answer[ids[i]][ids[i + 1]] = 1;
				answer[ids[i + 1]][ids[i]] = 1;
			}
		}
		for (auto x : ids) vis[x] = 1;
	}
	for (int i = 0; i < n; i++) answer[i][i] = 0;
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 6 ms 1188 KB Output is correct
7 Correct 145 ms 24000 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 6 ms 1188 KB Output is correct
7 Correct 145 ms 24000 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 296 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 149 ms 23940 KB Output is correct
14 Correct 1 ms 304 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 62 ms 14088 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 37 ms 6256 KB Output is correct
21 Correct 157 ms 23964 KB Output is correct
22 Correct 146 ms 23972 KB Output is correct
23 Correct 163 ms 23932 KB Output is correct
24 Correct 158 ms 23924 KB Output is correct
25 Correct 63 ms 14080 KB Output is correct
26 Correct 58 ms 14084 KB Output is correct
27 Correct 155 ms 23944 KB Output is correct
28 Correct 186 ms 23948 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 10 ms 1272 KB Output is correct
9 Correct 146 ms 24044 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 6 ms 1276 KB Output is correct
13 Correct 160 ms 23988 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 63 ms 14072 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 37 ms 6224 KB Output is correct
22 Correct 148 ms 23952 KB Output is correct
23 Correct 150 ms 23976 KB Output is correct
24 Correct 151 ms 23932 KB Output is correct
25 Correct 60 ms 14076 KB Output is correct
26 Correct 61 ms 14072 KB Output is correct
27 Correct 147 ms 23932 KB Output is correct
28 Correct 150 ms 24012 KB Output is correct
29 Correct 60 ms 14076 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 37 ms 6220 KB Output is correct
5 Correct 144 ms 23988 KB Output is correct
6 Correct 205 ms 24008 KB Output is correct
7 Correct 151 ms 24056 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 42 ms 6152 KB Output is correct
10 Correct 207 ms 23964 KB Output is correct
11 Correct 206 ms 24036 KB Output is correct
12 Correct 151 ms 23924 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 52 ms 6228 KB Output is correct
17 Correct 150 ms 23940 KB Output is correct
18 Correct 149 ms 23936 KB Output is correct
19 Correct 152 ms 24012 KB Output is correct
20 Correct 146 ms 24012 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 6 ms 1188 KB Output is correct
7 Correct 145 ms 24000 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 296 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 149 ms 23940 KB Output is correct
14 Correct 1 ms 304 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 62 ms 14088 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 37 ms 6256 KB Output is correct
21 Correct 157 ms 23964 KB Output is correct
22 Correct 146 ms 23972 KB Output is correct
23 Correct 163 ms 23932 KB Output is correct
24 Correct 158 ms 23924 KB Output is correct
25 Correct 63 ms 14080 KB Output is correct
26 Correct 58 ms 14084 KB Output is correct
27 Correct 155 ms 23944 KB Output is correct
28 Correct 186 ms 23948 KB Output is correct
29 Correct 1 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 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 10 ms 1272 KB Output is correct
37 Correct 146 ms 24044 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 6 ms 1276 KB Output is correct
41 Correct 160 ms 23988 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 63 ms 14072 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 37 ms 6224 KB Output is correct
50 Correct 148 ms 23952 KB Output is correct
51 Correct 150 ms 23976 KB Output is correct
52 Correct 151 ms 23932 KB Output is correct
53 Correct 60 ms 14076 KB Output is correct
54 Correct 61 ms 14072 KB Output is correct
55 Correct 147 ms 23932 KB Output is correct
56 Correct 150 ms 24012 KB Output is correct
57 Correct 60 ms 14076 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 63 ms 14084 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 37 ms 6268 KB Output is correct
66 Correct 60 ms 14072 KB Output is correct
67 Correct 61 ms 14000 KB Output is correct
68 Correct 63 ms 14176 KB Output is correct
69 Correct 58 ms 14116 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 6 ms 1188 KB Output is correct
7 Correct 145 ms 24000 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 296 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 149 ms 23940 KB Output is correct
14 Correct 1 ms 304 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 62 ms 14088 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 37 ms 6256 KB Output is correct
21 Correct 157 ms 23964 KB Output is correct
22 Correct 146 ms 23972 KB Output is correct
23 Correct 163 ms 23932 KB Output is correct
24 Correct 158 ms 23924 KB Output is correct
25 Correct 63 ms 14080 KB Output is correct
26 Correct 58 ms 14084 KB Output is correct
27 Correct 155 ms 23944 KB Output is correct
28 Correct 186 ms 23948 KB Output is correct
29 Correct 1 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 0 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 10 ms 1272 KB Output is correct
37 Correct 146 ms 24044 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 6 ms 1276 KB Output is correct
41 Correct 160 ms 23988 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 63 ms 14072 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 37 ms 6224 KB Output is correct
50 Correct 148 ms 23952 KB Output is correct
51 Correct 150 ms 23976 KB Output is correct
52 Correct 151 ms 23932 KB Output is correct
53 Correct 60 ms 14076 KB Output is correct
54 Correct 61 ms 14072 KB Output is correct
55 Correct 147 ms 23932 KB Output is correct
56 Correct 150 ms 24012 KB Output is correct
57 Correct 60 ms 14076 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 37 ms 6220 KB Output is correct
62 Correct 144 ms 23988 KB Output is correct
63 Correct 205 ms 24008 KB Output is correct
64 Correct 151 ms 24056 KB Output is correct
65 Correct 1 ms 304 KB Output is correct
66 Correct 42 ms 6152 KB Output is correct
67 Correct 207 ms 23964 KB Output is correct
68 Correct 206 ms 24036 KB Output is correct
69 Correct 151 ms 23924 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 52 ms 6228 KB Output is correct
74 Correct 150 ms 23940 KB Output is correct
75 Correct 149 ms 23936 KB Output is correct
76 Correct 152 ms 24012 KB Output is correct
77 Correct 146 ms 24012 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 3 ms 852 KB Output is correct
81 Correct 63 ms 14084 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 37 ms 6268 KB Output is correct
86 Correct 60 ms 14072 KB Output is correct
87 Correct 61 ms 14000 KB Output is correct
88 Correct 63 ms 14176 KB Output is correct
89 Correct 58 ms 14116 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 1 ms 304 KB Output is correct
92 Correct 3 ms 832 KB Output is correct
93 Correct 61 ms 14072 KB Output is correct
94 Correct 0 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 0 ms 212 KB Output is correct
97 Correct 15 ms 3716 KB Output is correct
98 Correct 60 ms 14088 KB Output is correct
99 Correct 61 ms 14080 KB Output is correct
100 Correct 60 ms 14076 KB Output is correct
101 Correct 59 ms 14076 KB Output is correct
102 Correct 60 ms 14080 KB Output is correct
103 Correct 62 ms 14088 KB Output is correct
104 Correct 69 ms 14076 KB Output is correct
105 Correct 66 ms 14076 KB Output is correct