oj.uz

Submission #794598

# Submission time Handle Problem Language Result Execution time Memory
794598 2023-07-26T16:07:43 Z MODDI Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 168 ms 24124 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);
			if(p[i][j] == 3)	return 0;
		}
	}
	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 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1232 KB Output is correct
7 Correct 156 ms 23980 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1232 KB Output is correct
7 Correct 156 ms 23980 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 157 ms 24096 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 67 ms 14132 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 39 ms 6304 KB Output is correct
21 Correct 162 ms 23960 KB Output is correct
22 Correct 150 ms 23968 KB Output is correct
23 Correct 157 ms 23984 KB Output is correct
24 Correct 149 ms 24108 KB Output is correct
25 Correct 69 ms 14124 KB Output is correct
26 Correct 62 ms 14052 KB Output is correct
27 Correct 160 ms 23984 KB Output is correct
28 Correct 154 ms 24012 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 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 7 ms 1308 KB Output is correct
9 Correct 150 ms 24096 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 7 ms 1320 KB Output is correct
13 Correct 156 ms 24096 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 0 ms 352 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 68 ms 14116 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 38 ms 6304 KB Output is correct
22 Correct 149 ms 24004 KB Output is correct
23 Correct 149 ms 24100 KB Output is correct
24 Correct 161 ms 24108 KB Output is correct
25 Correct 62 ms 14200 KB Output is correct
26 Correct 62 ms 14128 KB Output is correct
27 Correct 152 ms 24060 KB Output is correct
28 Correct 159 ms 24012 KB Output is correct
29 Correct 60 ms 14116 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 6304 KB Output is correct
5 Correct 152 ms 24008 KB Output is correct
6 Correct 155 ms 23984 KB Output is correct
7 Correct 155 ms 24124 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 38 ms 6312 KB Output is correct
10 Correct 150 ms 24100 KB Output is correct
11 Correct 150 ms 23984 KB Output is correct
12 Correct 156 ms 23992 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 38 ms 6320 KB Output is correct
17 Correct 150 ms 24096 KB Output is correct
18 Correct 156 ms 24000 KB Output is correct
19 Correct 168 ms 23972 KB Output is correct
20 Correct 149 ms 24112 KB Output is correct

Subtask #5
21.0 / 21.0

# 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 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1232 KB Output is correct
7 Correct 156 ms 23980 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 157 ms 24096 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 67 ms 14132 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 39 ms 6304 KB Output is correct
21 Correct 162 ms 23960 KB Output is correct
22 Correct 150 ms 23968 KB Output is correct
23 Correct 157 ms 23984 KB Output is correct
24 Correct 149 ms 24108 KB Output is correct
25 Correct 69 ms 14124 KB Output is correct
26 Correct 62 ms 14052 KB Output is correct
27 Correct 160 ms 23984 KB Output is correct
28 Correct 154 ms 24012 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 7 ms 1308 KB Output is correct
37 Correct 150 ms 24096 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1320 KB Output is correct
41 Correct 156 ms 24096 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 0 ms 352 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 68 ms 14116 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 38 ms 6304 KB Output is correct
50 Correct 149 ms 24004 KB Output is correct
51 Correct 149 ms 24100 KB Output is correct
52 Correct 161 ms 24108 KB Output is correct
53 Correct 62 ms 14200 KB Output is correct
54 Correct 62 ms 14128 KB Output is correct
55 Correct 152 ms 24060 KB Output is correct
56 Correct 159 ms 24012 KB Output is correct
57 Correct 60 ms 14116 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 66 ms 14124 KB Output is correct
62 Correct 0 ms 340 KB Output is correct
63 Correct 1 ms 344 KB Output is correct
64 Correct 1 ms 340 KB Output is correct
65 Correct 38 ms 6252 KB Output is correct
66 Correct 62 ms 14124 KB Output is correct
67 Correct 61 ms 14164 KB Output is correct
68 Correct 64 ms 14112 KB Output is correct
69 Correct 60 ms 14120 KB Output is correct

Subtask #6
4.0 / 4.0

# 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 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 8 ms 1232 KB Output is correct
7 Correct 156 ms 23980 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 352 KB Output is correct
12 Correct 7 ms 1236 KB Output is correct
13 Correct 157 ms 24096 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 3 ms 852 KB Output is correct
17 Correct 67 ms 14132 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 39 ms 6304 KB Output is correct
21 Correct 162 ms 23960 KB Output is correct
22 Correct 150 ms 23968 KB Output is correct
23 Correct 157 ms 23984 KB Output is correct
24 Correct 149 ms 24108 KB Output is correct
25 Correct 69 ms 14124 KB Output is correct
26 Correct 62 ms 14052 KB Output is correct
27 Correct 160 ms 23984 KB Output is correct
28 Correct 154 ms 24012 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 7 ms 1308 KB Output is correct
37 Correct 150 ms 24096 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 7 ms 1320 KB Output is correct
41 Correct 156 ms 24096 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 0 ms 352 KB Output is correct
44 Correct 3 ms 852 KB Output is correct
45 Correct 68 ms 14116 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 38 ms 6304 KB Output is correct
50 Correct 149 ms 24004 KB Output is correct
51 Correct 149 ms 24100 KB Output is correct
52 Correct 161 ms 24108 KB Output is correct
53 Correct 62 ms 14200 KB Output is correct
54 Correct 62 ms 14128 KB Output is correct
55 Correct 152 ms 24060 KB Output is correct
56 Correct 159 ms 24012 KB Output is correct
57 Correct 60 ms 14116 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 6304 KB Output is correct
62 Correct 152 ms 24008 KB Output is correct
63 Correct 155 ms 23984 KB Output is correct
64 Correct 155 ms 24124 KB Output is correct
65 Correct 1 ms 340 KB Output is correct
66 Correct 38 ms 6312 KB Output is correct
67 Correct 150 ms 24100 KB Output is correct
68 Correct 150 ms 23984 KB Output is correct
69 Correct 156 ms 23992 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 0 ms 340 KB Output is correct
72 Correct 1 ms 348 KB Output is correct
73 Correct 38 ms 6320 KB Output is correct
74 Correct 150 ms 24096 KB Output is correct
75 Correct 156 ms 24000 KB Output is correct
76 Correct 168 ms 23972 KB Output is correct
77 Correct 149 ms 24112 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 66 ms 14124 KB Output is correct
82 Correct 0 ms 340 KB Output is correct
83 Correct 1 ms 344 KB Output is correct
84 Correct 1 ms 340 KB Output is correct
85 Correct 38 ms 6252 KB Output is correct
86 Correct 62 ms 14124 KB Output is correct
87 Correct 61 ms 14164 KB Output is correct
88 Correct 64 ms 14112 KB Output is correct
89 Correct 60 ms 14120 KB Output is correct
90 Correct 0 ms 340 KB Output is correct
91 Correct 0 ms 340 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 64 ms 14116 KB Output is correct
94 Correct 0 ms 340 KB Output is correct
95 Correct 1 ms 340 KB Output is correct
96 Correct 1 ms 348 KB Output is correct
97 Correct 15 ms 3764 KB Output is correct
98 Correct 61 ms 14120 KB Output is correct
99 Correct 60 ms 14124 KB Output is correct
100 Correct 60 ms 14124 KB Output is correct
101 Correct 59 ms 14112 KB Output is correct
102 Correct 61 ms 14128 KB Output is correct
103 Correct 72 ms 14128 KB Output is correct
104 Correct 60 ms 14124 KB Output is correct
105 Correct 63 ms 14128 KB Output is correct