oj.uz

Submission #377337

# Submission time Handle Problem Language Result Execution time Memory
377337 2021-03-14T02:05:01 Z autumn_eel Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 281 ms 22464 KB 
#include "supertrees.h"

#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(int)(n);i++)
using namespace std;

struct UnionFind{
	vector<int>par;
	UnionFind(int n){
		par=vector<int>(n);
		rep(i,n)par[i]=i;
	}
	int find(int x){
		return par[x]==x?x:par[x]=find(par[x]);
	}
	void unite(int x,int y){
		x=find(x);y=find(y);
		par[y]=x;
	}
	bool same(int x,int y){
		return find(x)==find(y);
	}
};
static vector<int>v[2000],v2[2000];

int construct(std::vector<std::vector<int>> p) {
	int n = p.size();
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < n; i++) {
		std::vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}
	UnionFind uf1(n);
	rep(i,n)rep(j,n){
		if(p[i][j]==1)uf1.unite(i,j);
	}
	rep(i,n){
		v[uf1.find(i)].push_back(i);
	}
	UnionFind uf2(n);
	rep(i,n)for(int j=i+1;j<n;j++){
		if(!v[i].empty()&&!v[j].empty()&&p[i][j]==2){
			uf2.unite(i,j);
		}
	}
	rep(i,n){
		if(!v[i].empty())v2[uf2.find(i)].push_back(i);
	}
	rep(i,n){
		if(v2[i].size()>1){
			if(v2[i].size()==2)return 0;
			rep(j,v2[i].size()){
				answer[v2[i][j]][v2[i][(j+1)%v2[i].size()]]=1;
				answer[v2[i][(j+1)%v2[i].size()]][v2[i][j]]=1;
			}
		}
	}
	rep(i,n){
		if(v[i].size()>1){
			rep(j,v[i].size()-1){
				answer[v[i][j]][v[i][j+1]]=1;
				answer[v[i][j+1]][v[i][j]]=1;
			}
		}
	}
	rep(i,n)for(int j=i+1;j<n;j++){
		if(uf1.same(i,j)){
			if(p[i][j]!=1)return 0;
		}
		else if(uf2.same(uf1.find(i),uf1.find(j))){
			if(p[i][j]!=2)return 0;
		}
		else if(p[i][j]!=0)return 0;
	}
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 255 ms 22252 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 255 ms 22252 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 255 ms 22252 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 119 ms 12908 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 65 ms 5868 KB Output is correct
21 Correct 260 ms 22464 KB Output is correct
22 Correct 253 ms 22252 KB Output is correct
23 Correct 267 ms 22252 KB Output is correct
24 Correct 257 ms 22252 KB Output is correct
25 Correct 106 ms 13036 KB Output is correct
26 Correct 105 ms 13292 KB Output is correct
27 Correct 265 ms 22252 KB Output is correct
28 Correct 254 ms 22208 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 11 ms 1260 KB Output is correct
9 Correct 252 ms 22252 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1388 KB Output is correct
13 Correct 249 ms 22380 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 110 ms 12268 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 68 ms 5996 KB Output is correct
22 Correct 257 ms 22252 KB Output is correct
23 Correct 260 ms 22380 KB Output is correct
24 Correct 262 ms 22252 KB Output is correct
25 Correct 110 ms 12268 KB Output is correct
26 Correct 109 ms 12268 KB Output is correct
27 Correct 257 ms 22252 KB Output is correct
28 Correct 273 ms 22252 KB Output is correct
29 Correct 105 ms 12268 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 68 ms 5868 KB Output is correct
5 Correct 260 ms 22380 KB Output is correct
6 Correct 255 ms 22252 KB Output is correct
7 Correct 281 ms 22252 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 64 ms 5996 KB Output is correct
10 Correct 261 ms 22380 KB Output is correct
11 Correct 259 ms 22252 KB Output is correct
12 Correct 261 ms 22252 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 65 ms 5996 KB Output is correct
17 Correct 254 ms 22252 KB Output is correct
18 Correct 260 ms 22252 KB Output is correct
19 Correct 259 ms 22424 KB Output is correct
20 Correct 255 ms 22380 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 255 ms 22252 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 255 ms 22252 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 119 ms 12908 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 65 ms 5868 KB Output is correct
21 Correct 260 ms 22464 KB Output is correct
22 Correct 253 ms 22252 KB Output is correct
23 Correct 267 ms 22252 KB Output is correct
24 Correct 257 ms 22252 KB Output is correct
25 Correct 106 ms 13036 KB Output is correct
26 Correct 105 ms 13292 KB Output is correct
27 Correct 265 ms 22252 KB Output is correct
28 Correct 254 ms 22208 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 11 ms 1260 KB Output is correct
37 Correct 252 ms 22252 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 11 ms 1388 KB Output is correct
41 Correct 249 ms 22380 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 5 ms 876 KB Output is correct
45 Correct 110 ms 12268 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 68 ms 5996 KB Output is correct
50 Correct 257 ms 22252 KB Output is correct
51 Correct 260 ms 22380 KB Output is correct
52 Correct 262 ms 22252 KB Output is correct
53 Correct 110 ms 12268 KB Output is correct
54 Correct 109 ms 12268 KB Output is correct
55 Correct 257 ms 22252 KB Output is correct
56 Correct 273 ms 22252 KB Output is correct
57 Correct 105 ms 12268 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 5 ms 1004 KB Output is correct
61 Correct 111 ms 14188 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 1 ms 364 KB Output is correct
65 Correct 67 ms 6380 KB Output is correct
66 Correct 112 ms 14316 KB Output is correct
67 Correct 116 ms 14336 KB Output is correct
68 Correct 108 ms 14444 KB Output is correct
69 Correct 112 ms 14316 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 11 ms 1260 KB Output is correct
7 Correct 255 ms 22252 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 11 ms 1260 KB Output is correct
13 Correct 255 ms 22252 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 5 ms 876 KB Output is correct
17 Correct 119 ms 12908 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 65 ms 5868 KB Output is correct
21 Correct 260 ms 22464 KB Output is correct
22 Correct 253 ms 22252 KB Output is correct
23 Correct 267 ms 22252 KB Output is correct
24 Correct 257 ms 22252 KB Output is correct
25 Correct 106 ms 13036 KB Output is correct
26 Correct 105 ms 13292 KB Output is correct
27 Correct 265 ms 22252 KB Output is correct
28 Correct 254 ms 22208 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 11 ms 1260 KB Output is correct
37 Correct 252 ms 22252 KB Output is correct
38 Correct 1 ms 364 KB Output is correct
39 Correct 1 ms 364 KB Output is correct
40 Correct 11 ms 1388 KB Output is correct
41 Correct 249 ms 22380 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 1 ms 364 KB Output is correct
44 Correct 5 ms 876 KB Output is correct
45 Correct 110 ms 12268 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 68 ms 5996 KB Output is correct
50 Correct 257 ms 22252 KB Output is correct
51 Correct 260 ms 22380 KB Output is correct
52 Correct 262 ms 22252 KB Output is correct
53 Correct 110 ms 12268 KB Output is correct
54 Correct 109 ms 12268 KB Output is correct
55 Correct 257 ms 22252 KB Output is correct
56 Correct 273 ms 22252 KB Output is correct
57 Correct 105 ms 12268 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 68 ms 5868 KB Output is correct
62 Correct 260 ms 22380 KB Output is correct
63 Correct 255 ms 22252 KB Output is correct
64 Correct 281 ms 22252 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 64 ms 5996 KB Output is correct
67 Correct 261 ms 22380 KB Output is correct
68 Correct 259 ms 22252 KB Output is correct
69 Correct 261 ms 22252 KB Output is correct
70 Correct 1 ms 364 KB Output is correct
71 Correct 1 ms 364 KB Output is correct
72 Correct 1 ms 364 KB Output is correct
73 Correct 65 ms 5996 KB Output is correct
74 Correct 254 ms 22252 KB Output is correct
75 Correct 260 ms 22252 KB Output is correct
76 Correct 259 ms 22424 KB Output is correct
77 Correct 255 ms 22380 KB Output is correct
78 Correct 1 ms 364 KB Output is correct
79 Correct 1 ms 364 KB Output is correct
80 Correct 5 ms 1004 KB Output is correct
81 Correct 111 ms 14188 KB Output is correct
82 Correct 1 ms 364 KB Output is correct
83 Correct 1 ms 364 KB Output is correct
84 Correct 1 ms 364 KB Output is correct
85 Correct 67 ms 6380 KB Output is correct
86 Correct 112 ms 14316 KB Output is correct
87 Correct 116 ms 14336 KB Output is correct
88 Correct 108 ms 14444 KB Output is correct
89 Correct 112 ms 14316 KB Output is correct
90 Correct 1 ms 364 KB Output is correct
91 Correct 1 ms 364 KB Output is correct
92 Correct 5 ms 1004 KB Output is correct
93 Correct 117 ms 14188 KB Output is correct
94 Correct 1 ms 364 KB Output is correct
95 Correct 1 ms 364 KB Output is correct
96 Correct 1 ms 364 KB Output is correct
97 Correct 28 ms 3948 KB Output is correct
98 Correct 116 ms 14316 KB Output is correct
99 Correct 111 ms 14316 KB Output is correct
100 Correct 108 ms 14316 KB Output is correct
101 Correct 110 ms 14316 KB Output is correct
102 Correct 96 ms 14316 KB Output is correct
103 Correct 101 ms 14316 KB Output is correct
104 Correct 114 ms 14188 KB Output is correct
105 Correct 107 ms 14444 KB Output is correct