oj.uz

Submission #831846

# Submission time Handle Problem Language Result Execution time Memory
831846 2023-08-20T16:01:40 Z gesgha Connecting Supertrees (IOI20_supertrees) C++17
46 / 100
 179 ms 22212 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 cnt1[M];


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++) cnt1[i] += bool(p[i][j] == 1);
	}
	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] == 1);
		}
		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]) {
					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 (cnt1[ids[i]] != 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 0 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 256 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1108 KB Output is correct
7 Correct 179 ms 22084 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 256 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1108 KB Output is correct
7 Correct 179 ms 22084 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 0 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 153 ms 22176 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 68 ms 12212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5872 KB Output is correct
21 Correct 149 ms 22072 KB Output is correct
22 Correct 151 ms 22160 KB Output is correct
23 Correct 155 ms 22168 KB Output is correct
24 Correct 156 ms 22116 KB Output is correct
25 Incorrect 153 ms 22100 KB Answer gives possible 1 while actual possible 0
26 Halted 0 ms 0 KB -

Subtask #3
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 0 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 0 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 38 ms 5840 KB Output is correct
5 Correct 167 ms 22096 KB Output is correct
6 Correct 165 ms 22144 KB Output is correct
7 Correct 153 ms 22128 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 38 ms 5816 KB Output is correct
10 Correct 153 ms 22144 KB Output is correct
11 Correct 159 ms 22084 KB Output is correct
12 Correct 155 ms 22088 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 38 ms 5868 KB Output is correct
17 Correct 161 ms 22212 KB Output is correct
18 Correct 164 ms 22096 KB Output is correct
19 Correct 151 ms 22092 KB Output is correct
20 Correct 163 ms 22184 KB Output is correct

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 256 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1108 KB Output is correct
7 Correct 179 ms 22084 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 0 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 153 ms 22176 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 68 ms 12212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5872 KB Output is correct
21 Correct 149 ms 22072 KB Output is correct
22 Correct 151 ms 22160 KB Output is correct
23 Correct 155 ms 22168 KB Output is correct
24 Correct 156 ms 22116 KB Output is correct
25 Incorrect 153 ms 22100 KB Answer gives possible 1 while actual possible 0
26 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 256 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1108 KB Output is correct
7 Correct 179 ms 22084 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 0 ms 212 KB Output is correct
12 Correct 7 ms 1108 KB Output is correct
13 Correct 153 ms 22176 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 68 ms 12212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 38 ms 5872 KB Output is correct
21 Correct 149 ms 22072 KB Output is correct
22 Correct 151 ms 22160 KB Output is correct
23 Correct 155 ms 22168 KB Output is correct
24 Correct 156 ms 22116 KB Output is correct
25 Incorrect 153 ms 22100 KB Answer gives possible 1 while actual possible 0
26 Halted 0 ms 0 KB -