oj.uz

Submission #800731

# Submission time Handle Problem Language Result Execution time Memory
800731 2023-08-01T19:18:46 Z MODDI Connecting Supertrees (IOI20_supertrees) C++14
96 / 100
 161 ms 22220 KB 
//#include "grader.cpp"
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
struct DSU{
	vi parent, size;
	void init(int n){
		parent.resize(n);
		size.resize(n, 1);
		iota(parent.begin(), parent.end(), 0);
	}
	int get_size(int v){
		return size[v];
	}
	int find_parent(int v){
		if(parent[v] == v)	return v;
		return parent[v] = find_parent(parent[v]);
	}
	void merge(int a, int b){
		a = find_parent(a);
		b = find_parent(b);
		if(a != b){
			if(size[b] > size[a])	swap(a,b);
			
			parent[b] = a;
			size[a] += size[b];
		} 
	}
};
vi G[1001], G2[1001];
int construct(vector<vi> p){
	int n = p.size();
	vector<vi> answer(n, vi(n, 0));
	DSU dsu, dsu2;
	dsu.init(n);
	dsu2.init(n);
	for(int i = 0; i < n; i++){
		for(int j = i + 1; j < n; j++){
			if(p[i][j] == 1)	dsu.merge(i, j);
		}
	}
	for(int i = 0; i < n; i++){
		G[dsu.find_parent(i)].pb(i);
	}
	for(int i = 0; i < n; i++){
		if(G[i].size() ==0)	continue;
		for(int j = 0; j < (int)G[i].size(); j++){
			for(int k = j+1; k < (int)G[i].size(); k++){
				if(p[G[i][k]][G[i][j]] != 1)	return 0;
			}
		}
		for(int j = 0; j < (int)G[i].size()-1; j++){
			answer[G[i][j]][G[i][j+1]] = 1;
			answer[G[i][j+1]][G[i][j]] = 1;
		}
	}
	for(int i = 0; i < n; i++){
		for(int j = i + 1; j < n; j++){
			if(p[i][j] == 2)
				dsu2.merge(dsu.find_parent(i), dsu.find_parent(j));
		}
	}
	for(int i = 0; i < n; i++){
		if(G[i].size()==0)	continue;
		G2[dsu2.find_parent(i)].pb(i);
	}
	for(int i = 0; i < n; i++){
		if(G2[i].size() < 2)	continue;
		if(G2[i].size() == 2)	return 0;
		for(int j = 0; j < (int)G2[i].size(); j++){
			for(int k = j + 1; k < (int)G2[i].size(); k++){
				for(auto t : G[G2[i][j]]){
					for(auto s : G[G2[i][k]]){
						if(p[t][s] != 2)	return 0;
					}
				}
			}
		}
		for(int j = 0; j < (int)G2[i].size()-1; j++){
			answer[G2[i][j]][G2[i][j+1]] = 1;
			answer[G2[i][j+1]][G2[i][j]] = 1;
		}
		answer[G2[i].back()][G2[i][0]] = 1;
		answer[G2[i][0]][G2[i].back()] = 1;
	}
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 8 ms 1224 KB Output is correct
7 Correct 156 ms 22068 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 8 ms 1224 KB Output is correct
7 Correct 156 ms 22068 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1256 KB Output is correct
13 Correct 155 ms 22076 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 70 ms 12084 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 38 ms 5820 KB Output is correct
21 Correct 156 ms 22092 KB Output is correct
22 Correct 154 ms 22080 KB Output is correct
23 Correct 159 ms 22064 KB Output is correct
24 Correct 161 ms 22076 KB Output is correct
25 Correct 65 ms 12092 KB Output is correct
26 Correct 64 ms 12212 KB Output is correct
27 Correct 160 ms 22064 KB Output is correct
28 Correct 153 ms 22068 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 7 ms 1232 KB Output is correct
9 Correct 158 ms 22220 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 157 ms 22068 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 764 KB Output is correct
17 Correct 74 ms 12240 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 39 ms 5832 KB Output is correct
22 Correct 154 ms 22068 KB Output is correct
23 Correct 154 ms 22064 KB Output is correct
24 Correct 158 ms 22032 KB Output is correct
25 Correct 66 ms 12220 KB Output is correct
26 Correct 62 ms 12160 KB Output is correct
27 Correct 155 ms 22148 KB Output is correct
28 Correct 159 ms 22076 KB Output is correct
29 Correct 63 ms 12212 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 39 ms 5816 KB Output is correct
5 Correct 155 ms 22076 KB Output is correct
6 Correct 154 ms 22076 KB Output is correct
7 Correct 159 ms 22068 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 42 ms 5800 KB Output is correct
10 Correct 155 ms 22064 KB Output is correct
11 Correct 155 ms 22092 KB Output is correct
12 Correct 158 ms 22064 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 39 ms 5824 KB Output is correct
17 Correct 154 ms 22084 KB Output is correct
18 Correct 154 ms 22092 KB Output is correct
19 Correct 156 ms 22076 KB Output is correct
20 Correct 156 ms 22092 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 8 ms 1224 KB Output is correct
7 Correct 156 ms 22068 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1256 KB Output is correct
13 Correct 155 ms 22076 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 70 ms 12084 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 38 ms 5820 KB Output is correct
21 Correct 156 ms 22092 KB Output is correct
22 Correct 154 ms 22080 KB Output is correct
23 Correct 159 ms 22064 KB Output is correct
24 Correct 161 ms 22076 KB Output is correct
25 Correct 65 ms 12092 KB Output is correct
26 Correct 64 ms 12212 KB Output is correct
27 Correct 160 ms 22064 KB Output is correct
28 Correct 153 ms 22068 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 7 ms 1232 KB Output is correct
37 Correct 158 ms 22220 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 157 ms 22068 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 3 ms 764 KB Output is correct
45 Correct 74 ms 12240 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 39 ms 5832 KB Output is correct
50 Correct 154 ms 22068 KB Output is correct
51 Correct 154 ms 22064 KB Output is correct
52 Correct 158 ms 22032 KB Output is correct
53 Correct 66 ms 12220 KB Output is correct
54 Correct 62 ms 12160 KB Output is correct
55 Correct 155 ms 22148 KB Output is correct
56 Correct 159 ms 22076 KB Output is correct
57 Correct 63 ms 12212 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 72 ms 14116 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 1 ms 340 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 49 ms 6308 KB Output is correct
66 Correct 65 ms 14180 KB Output is correct
67 Correct 64 ms 14124 KB Output is correct
68 Correct 69 ms 14120 KB Output is correct
69 Correct 65 ms 14156 KB Output is correct

Subtask #6
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 8 ms 1224 KB Output is correct
7 Correct 156 ms 22068 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 7 ms 1256 KB Output is correct
13 Correct 155 ms 22076 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 70 ms 12084 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 38 ms 5820 KB Output is correct
21 Correct 156 ms 22092 KB Output is correct
22 Correct 154 ms 22080 KB Output is correct
23 Correct 159 ms 22064 KB Output is correct
24 Correct 161 ms 22076 KB Output is correct
25 Correct 65 ms 12092 KB Output is correct
26 Correct 64 ms 12212 KB Output is correct
27 Correct 160 ms 22064 KB Output is correct
28 Correct 153 ms 22068 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 7 ms 1232 KB Output is correct
37 Correct 158 ms 22220 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 7 ms 1236 KB Output is correct
41 Correct 157 ms 22068 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 0 ms 340 KB Output is correct
44 Correct 3 ms 764 KB Output is correct
45 Correct 74 ms 12240 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 0 ms 340 KB Output is correct
49 Correct 39 ms 5832 KB Output is correct
50 Correct 154 ms 22068 KB Output is correct
51 Correct 154 ms 22064 KB Output is correct
52 Correct 158 ms 22032 KB Output is correct
53 Correct 66 ms 12220 KB Output is correct
54 Correct 62 ms 12160 KB Output is correct
55 Correct 155 ms 22148 KB Output is correct
56 Correct 159 ms 22076 KB Output is correct
57 Correct 63 ms 12212 KB Output is correct
58 Correct 1 ms 340 KB Output is correct
59 Correct 0 ms 340 KB Output is correct
60 Correct 0 ms 340 KB Output is correct
61 Correct 39 ms 5816 KB Output is correct
62 Correct 155 ms 22076 KB Output is correct
63 Correct 154 ms 22076 KB Output is correct
64 Correct 159 ms 22068 KB Output is correct
65 Correct 0 ms 340 KB Output is correct
66 Correct 42 ms 5800 KB Output is correct
67 Correct 155 ms 22064 KB Output is correct
68 Correct 155 ms 22092 KB Output is correct
69 Correct 158 ms 22064 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 0 ms 340 KB Output is correct
72 Correct 0 ms 340 KB Output is correct
73 Correct 39 ms 5824 KB Output is correct
74 Correct 154 ms 22084 KB Output is correct
75 Correct 154 ms 22092 KB Output is correct
76 Correct 156 ms 22076 KB Output is correct
77 Correct 156 ms 22092 KB Output is correct
78 Correct 1 ms 340 KB Output is correct
79 Correct 1 ms 340 KB Output is correct
80 Correct 3 ms 852 KB Output is correct
81 Correct 72 ms 14116 KB Output is correct
82 Correct 0 ms 340 KB Output is correct
83 Correct 1 ms 340 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 49 ms 6308 KB Output is correct
86 Correct 65 ms 14180 KB Output is correct
87 Correct 64 ms 14124 KB Output is correct
88 Correct 69 ms 14120 KB Output is correct
89 Correct 65 ms 14156 KB Output is correct
90 Correct 0 ms 340 KB Output is correct
91 Correct 0 ms 348 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 69 ms 14132 KB Output is correct
94 Correct 0 ms 340 KB Output is correct
95 Incorrect 0 ms 340 KB Answer gives possible 1 while actual possible 0
96 Halted 0 ms 0 KB -