oj.uz

Submission #831878

# Submission time Handle Problem Language Result Execution time Memory
831878 2023-08-20T16:36:17 Z gesgha Connecting Supertrees (IOI20_supertrees) C++17
56 / 100
 190 ms 22576 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) - 1; i++) {
			for (int j = 0; j < sz(ids) - 1; 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;
			}
			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 300 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 176 ms 22564 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 300 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 176 ms 22564 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 300 KB Output is correct
10 Correct 0 ms 308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1220 KB Output is correct
13 Correct 159 ms 22480 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 828 KB Output is correct
17 Correct 64 ms 12580 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 43 ms 6020 KB Output is correct
21 Correct 190 ms 22556 KB Output is correct
22 Correct 172 ms 22536 KB Output is correct
23 Correct 174 ms 22528 KB Output is correct
24 Correct 155 ms 22512 KB Output is correct
25 Correct 62 ms 12564 KB Output is correct
26 Correct 64 ms 12164 KB Output is correct
27 Correct 160 ms 22288 KB Output is correct
28 Correct 157 ms 22280 KB Output is correct

Subtask #3
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Incorrect 0 ms 212 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

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 40 ms 5924 KB Output is correct
5 Correct 153 ms 22564 KB Output is correct
6 Correct 170 ms 22516 KB Output is correct
7 Correct 163 ms 22548 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 39 ms 6036 KB Output is correct
10 Correct 162 ms 22480 KB Output is correct
11 Correct 162 ms 22520 KB Output is correct
12 Correct 173 ms 22520 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 41 ms 6020 KB Output is correct
17 Correct 162 ms 22560 KB Output is correct
18 Correct 156 ms 22524 KB Output is correct
19 Correct 159 ms 22500 KB Output is correct
20 Correct 168 ms 22576 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 176 ms 22564 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 300 KB Output is correct
10 Correct 0 ms 308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1220 KB Output is correct
13 Correct 159 ms 22480 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 828 KB Output is correct
17 Correct 64 ms 12580 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 43 ms 6020 KB Output is correct
21 Correct 190 ms 22556 KB Output is correct
22 Correct 172 ms 22536 KB Output is correct
23 Correct 174 ms 22528 KB Output is correct
24 Correct 155 ms 22512 KB Output is correct
25 Correct 62 ms 12564 KB Output is correct
26 Correct 64 ms 12164 KB Output is correct
27 Correct 160 ms 22288 KB Output is correct
28 Correct 157 ms 22280 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Incorrect 0 ms 212 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 300 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 7 ms 1236 KB Output is correct
7 Correct 176 ms 22564 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 300 KB Output is correct
10 Correct 0 ms 308 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 7 ms 1220 KB Output is correct
13 Correct 159 ms 22480 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 828 KB Output is correct
17 Correct 64 ms 12580 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 43 ms 6020 KB Output is correct
21 Correct 190 ms 22556 KB Output is correct
22 Correct 172 ms 22536 KB Output is correct
23 Correct 174 ms 22528 KB Output is correct
24 Correct 155 ms 22512 KB Output is correct
25 Correct 62 ms 12564 KB Output is correct
26 Correct 64 ms 12164 KB Output is correct
27 Correct 160 ms 22288 KB Output is correct
28 Correct 157 ms 22280 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1 ms 300 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Incorrect 0 ms 212 KB Answer gives possible 1 while actual possible 0
33 Halted 0 ms 0 KB -