oj.uz

Submission #716431

# Submission time Handle Problem Language Result Execution time Memory
716431 2023-03-30T05:45:36 Z Baytoro Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 215 ms 24140 KB 
#include "supertrees.h"
//#include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;
struct DSU{
	vector<int> p,sz;
	void build(int n){
		p.resize(n);
		sz.resize(n);
		for(int i=0;i<n;i++){
			p[i]=i;
			sz[i]=1;
		}
	}
	int f(int x){
		if(p[x]==x) return x;
		return p[x]=f(p[x]);
	}
	void add_edge(int a, int b){
		a=f(a);b=f(b);
		if(a==b) return;
		if(sz[a]>sz[b]) swap(a,b);
		p[a]=b;
		sz[b]+=sz[a];
	}
};
int construct(vector<vector<int>> p) {
	int n = p.size();
	DSU trees,comp;
	trees.build(n);comp.build(n);
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(p[i][j]==3) return 0;
			if(p[i][j]==1)
				trees.add_edge(i,j);
			if(p[i][j]>0)
				comp.add_edge(i,j);
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(p[i][j]==0 && comp.f(i)==comp.f(j)) return 0;
			if(p[i][j]!=0 && comp.f(i)!=comp.f(j)) return 0;
			if(p[i][j]==1 && trees.f(i)!=trees.f(j)) return 0;
			if(p[i][j]!=1 && trees.f(i)==trees.f(j)) return 0;
			if(p[i][j]==2 && comp.f(i)!=comp.f(j) && trees.f(i)==trees.f(j)) return 0;
			if(p[i][j]!=2 && comp.f(i)==comp.f(j) && trees.f(i)!=trees.f(j)) return 0;
		}
	}
	vector<int> used(n);
	vector<vector<int>> b(n,vector<int>(n,0));
	vector<vector<int>> v(n);
	for(int i=0;i<n;i++){
		if(!used[i]){
			used[i]=1;
			v[comp.f(i)].push_back(i);
			for(int j=0;j<n;j++){
				if(j!=i && trees.f(i)==trees.f(j)){
					b[i][j]=b[j][i]=1;
					used[j]=1;
				}
			}
		}
	}
	for(auto it: v){
		if(it.size()==2) return 0;
		if(it.size()>2){
			for(int i=0;i<(int)it.size();i++){
				b[it[i]][(it[(i+1)%(int)it.size()])]=b[(it[(i+1)%(int)it.size()])][it[i]]=1;
			}
		}
	}
	build(b);
	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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 9 ms 1172 KB Output is correct
7 Correct 201 ms 22036 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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 9 ms 1172 KB Output is correct
7 Correct 201 ms 22036 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 1 ms 212 KB Output is correct
12 Correct 8 ms 1108 KB Output is correct
13 Correct 215 ms 22040 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 596 KB Output is correct
17 Correct 82 ms 10100 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 52 ms 6260 KB Output is correct
21 Correct 187 ms 24080 KB Output is correct
22 Correct 186 ms 24060 KB Output is correct
23 Correct 198 ms 23936 KB Output is correct
24 Correct 178 ms 24100 KB Output is correct
25 Correct 76 ms 10100 KB Output is correct
26 Correct 74 ms 10100 KB Output is correct
27 Correct 199 ms 24032 KB Output is correct
28 Correct 194 ms 23960 KB Output is correct

Subtask #3
19.0 / 19.0

# 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 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 8 ms 1108 KB Output is correct
9 Correct 182 ms 22160 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 11 ms 1108 KB Output is correct
13 Correct 202 ms 22020 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 4 ms 708 KB Output is correct
17 Correct 82 ms 10060 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 53 ms 6188 KB Output is correct
22 Correct 187 ms 23936 KB Output is correct
23 Correct 213 ms 24092 KB Output is correct
24 Correct 200 ms 23988 KB Output is correct
25 Correct 101 ms 14124 KB Output is correct
26 Correct 70 ms 10116 KB Output is correct
27 Correct 193 ms 24140 KB Output is correct
28 Correct 209 ms 24104 KB Output is correct
29 Correct 82 ms 14144 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 1 ms 212 KB Output is correct
4 Correct 54 ms 5764 KB Output is correct
5 Correct 195 ms 22044 KB Output is correct
6 Correct 191 ms 22020 KB Output is correct
7 Correct 195 ms 22016 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 46 ms 5708 KB Output is correct
10 Correct 183 ms 22028 KB Output is correct
11 Correct 192 ms 22008 KB Output is correct
12 Correct 199 ms 22024 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 51 ms 5672 KB Output is correct
17 Correct 189 ms 22168 KB Output is correct
18 Correct 189 ms 22024 KB Output is correct
19 Correct 198 ms 22100 KB Output is correct
20 Correct 177 ms 22020 KB Output is correct

Subtask #5
21.0 / 21.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 9 ms 1172 KB Output is correct
7 Correct 201 ms 22036 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 1 ms 212 KB Output is correct
12 Correct 8 ms 1108 KB Output is correct
13 Correct 215 ms 22040 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 596 KB Output is correct
17 Correct 82 ms 10100 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 52 ms 6260 KB Output is correct
21 Correct 187 ms 24080 KB Output is correct
22 Correct 186 ms 24060 KB Output is correct
23 Correct 198 ms 23936 KB Output is correct
24 Correct 178 ms 24100 KB Output is correct
25 Correct 76 ms 10100 KB Output is correct
26 Correct 74 ms 10100 KB Output is correct
27 Correct 199 ms 24032 KB Output is correct
28 Correct 194 ms 23960 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 8 ms 1108 KB Output is correct
37 Correct 182 ms 22160 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 11 ms 1108 KB Output is correct
41 Correct 202 ms 22020 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 4 ms 708 KB Output is correct
45 Correct 82 ms 10060 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 53 ms 6188 KB Output is correct
50 Correct 187 ms 23936 KB Output is correct
51 Correct 213 ms 24092 KB Output is correct
52 Correct 200 ms 23988 KB Output is correct
53 Correct 101 ms 14124 KB Output is correct
54 Correct 70 ms 10116 KB Output is correct
55 Correct 193 ms 24140 KB Output is correct
56 Correct 209 ms 24104 KB Output is correct
57 Correct 82 ms 14144 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 4 ms 596 KB Output is correct
61 Correct 88 ms 10060 KB Output is correct
62 Correct 1 ms 212 KB Output is correct
63 Correct 1 ms 300 KB Output is correct
64 Correct 0 ms 300 KB Output is correct
65 Correct 52 ms 6260 KB Output is correct
66 Correct 74 ms 10100 KB Output is correct
67 Correct 73 ms 10104 KB Output is correct
68 Correct 74 ms 10096 KB Output is correct
69 Correct 87 ms 14120 KB Output is correct

Subtask #6
4.0 / 4.0

# 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 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 9 ms 1172 KB Output is correct
7 Correct 201 ms 22036 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 1 ms 212 KB Output is correct
12 Correct 8 ms 1108 KB Output is correct
13 Correct 215 ms 22040 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 596 KB Output is correct
17 Correct 82 ms 10100 KB Output is correct
18 Correct 1 ms 300 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 52 ms 6260 KB Output is correct
21 Correct 187 ms 24080 KB Output is correct
22 Correct 186 ms 24060 KB Output is correct
23 Correct 198 ms 23936 KB Output is correct
24 Correct 178 ms 24100 KB Output is correct
25 Correct 76 ms 10100 KB Output is correct
26 Correct 74 ms 10100 KB Output is correct
27 Correct 199 ms 24032 KB Output is correct
28 Correct 194 ms 23960 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 8 ms 1108 KB Output is correct
37 Correct 182 ms 22160 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 11 ms 1108 KB Output is correct
41 Correct 202 ms 22020 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 4 ms 708 KB Output is correct
45 Correct 82 ms 10060 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 53 ms 6188 KB Output is correct
50 Correct 187 ms 23936 KB Output is correct
51 Correct 213 ms 24092 KB Output is correct
52 Correct 200 ms 23988 KB Output is correct
53 Correct 101 ms 14124 KB Output is correct
54 Correct 70 ms 10116 KB Output is correct
55 Correct 193 ms 24140 KB Output is correct
56 Correct 209 ms 24104 KB Output is correct
57 Correct 82 ms 14144 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 1 ms 212 KB Output is correct
61 Correct 54 ms 5764 KB Output is correct
62 Correct 195 ms 22044 KB Output is correct
63 Correct 191 ms 22020 KB Output is correct
64 Correct 195 ms 22016 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 46 ms 5708 KB Output is correct
67 Correct 183 ms 22028 KB Output is correct
68 Correct 192 ms 22008 KB Output is correct
69 Correct 199 ms 22024 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 51 ms 5672 KB Output is correct
74 Correct 189 ms 22168 KB Output is correct
75 Correct 189 ms 22024 KB Output is correct
76 Correct 198 ms 22100 KB Output is correct
77 Correct 177 ms 22020 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 4 ms 596 KB Output is correct
81 Correct 88 ms 10060 KB Output is correct
82 Correct 1 ms 212 KB Output is correct
83 Correct 1 ms 300 KB Output is correct
84 Correct 0 ms 300 KB Output is correct
85 Correct 52 ms 6260 KB Output is correct
86 Correct 74 ms 10100 KB Output is correct
87 Correct 73 ms 10104 KB Output is correct
88 Correct 74 ms 10096 KB Output is correct
89 Correct 87 ms 14120 KB Output is correct
90 Correct 1 ms 300 KB Output is correct
91 Correct 1 ms 212 KB Output is correct
92 Correct 4 ms 692 KB Output is correct
93 Correct 85 ms 10108 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 1 ms 300 KB Output is correct
96 Correct 1 ms 212 KB Output is correct
97 Correct 22 ms 2684 KB Output is correct
98 Correct 69 ms 10060 KB Output is correct
99 Correct 70 ms 10112 KB Output is correct
100 Correct 70 ms 10100 KB Output is correct
101 Correct 74 ms 10096 KB Output is correct
102 Correct 79 ms 10104 KB Output is correct
103 Correct 71 ms 10100 KB Output is correct
104 Correct 70 ms 10100 KB Output is correct
105 Correct 76 ms 10152 KB Output is correct