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Submission #309555

# Submission time Handle Problem Language Result Execution time Memory
309555 2020-10-03T19:19:49 Z algorithm16 Connecting Supertrees (IOI20_supertrees) C++14
100 / 100
 275 ms 22392 KB 
#include<iostream>
#include<vector>
#include<set>
#include<algorithm>
#include "supertrees.h"
using namespace std;
int parent[1005],d[1005];
vector <vector<int> > sol;
set <int> s1;
vector <int> v1;
int find_par(int x) {
	if(parent[x]==x) return x;
	int par=find_par(parent[x]);
	parent[x]=par;
	return par;
}
void s(int x,int y) {
	if(find_par(x)==find_par(y)) return;
	sol[x][y]=1;
	sol[y][x]=1;
	x=find_par(x);
	y=find_par(y);
	if(x==y) return;
	if(d[x]==d[y]) d[x]+=1;
	if(d[x]>d[y]) parent[y]=x;
	else parent[x]=y;
}
int construct(vector <vector<int> > p) {
	int n=p.size(),maxi=0;
	for(int i=0;i<n;i++) {
		parent[i]=i;
		d[i]=1;
		sol.push_back(v1);
		for(int j=0;j<n;j++) {
			sol[i].push_back(0);
		}
	}
	for(int i=0;i<n;i++) {
		for(int j=0;j<n;j++) {
			if(i==j) continue;
			if(p[i][j]==1) s(i,j);
			maxi=max(maxi,p[i][j]);
		}
	}
	if(maxi>2) return 0;
	if(n==2 && maxi>1) return 0;
	/*for(int i=0;i<n;i++) {
		for(int j=0;j<n;j++) {
			cout << sol[i][j] << " ";
		}
		cout << "\n";
	}
	cout << "\n";*/
	vector <int> v;
	for(int i=0;i<n;i++) {
		v.clear();
		int last=i;
		for(int j=0;j<n;j++) {
			if(p[i][j]==2) {
				if(find_par(i)==find_par(j)) continue;
				s(last,j);
				last=j;
				v.push_back(j);
			}
		}
		if(v.empty()) continue;
		if(v.size()==1) return 0;
		/*for(int j=0;j<v.size();j++) {
			cout << v[j] << " ";
		}
		cout << "\n";*/
		/*s(i,v[0]);
		for(int j=0;j<v.size()-1;j++) {
			s(v[j],v[j+1]);
		}*/
		if(s1.find(find_par(i))!=s1.end()) continue;
		s1.insert(find_par(i));
		sol[i][last]=1;
		sol[last][i]=1;
	}
	for(int i=0;i<n;i++) {
		for(int j=0;j<n;j++) {
			if(i==j) continue;
			if(find_par(i)==find_par(j) && p[i][j]==0) return 0;
		}
	}
	build(sol);
	return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 13 ms 1280 KB Output is correct
7 Correct 257 ms 22264 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 13 ms 1280 KB Output is correct
7 Correct 257 ms 22264 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 288 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 244 ms 22264 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 119 ms 12280 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 62 ms 5880 KB Output is correct
21 Correct 247 ms 22264 KB Output is correct
22 Correct 244 ms 22140 KB Output is correct
23 Correct 269 ms 22360 KB Output is correct
24 Correct 243 ms 22264 KB Output is correct
25 Correct 108 ms 12280 KB Output is correct
26 Correct 107 ms 12280 KB Output is correct
27 Correct 268 ms 22136 KB Output is correct
28 Correct 239 ms 22264 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 10 ms 1280 KB Output is correct
9 Correct 244 ms 22172 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 11 ms 1280 KB Output is correct
13 Correct 256 ms 22232 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 112 ms 12280 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 256 KB Output is correct
20 Correct 1 ms 256 KB Output is correct
21 Correct 62 ms 5880 KB Output is correct
22 Correct 260 ms 22392 KB Output is correct
23 Correct 243 ms 22136 KB Output is correct
24 Correct 264 ms 22264 KB Output is correct
25 Correct 107 ms 12280 KB Output is correct
26 Correct 105 ms 12328 KB Output is correct
27 Correct 244 ms 22264 KB Output is correct
28 Correct 275 ms 22264 KB Output is correct
29 Correct 103 ms 12280 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 63 ms 5880 KB Output is correct
5 Correct 256 ms 22136 KB Output is correct
6 Correct 252 ms 22160 KB Output is correct
7 Correct 264 ms 22136 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 74 ms 5880 KB Output is correct
10 Correct 246 ms 22136 KB Output is correct
11 Correct 243 ms 22136 KB Output is correct
12 Correct 270 ms 22264 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 65 ms 5876 KB Output is correct
17 Correct 246 ms 22136 KB Output is correct
18 Correct 250 ms 22136 KB Output is correct
19 Correct 248 ms 22364 KB Output is correct
20 Correct 247 ms 22240 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 13 ms 1280 KB Output is correct
7 Correct 257 ms 22264 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 288 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 244 ms 22264 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 119 ms 12280 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 62 ms 5880 KB Output is correct
21 Correct 247 ms 22264 KB Output is correct
22 Correct 244 ms 22140 KB Output is correct
23 Correct 269 ms 22360 KB Output is correct
24 Correct 243 ms 22264 KB Output is correct
25 Correct 108 ms 12280 KB Output is correct
26 Correct 107 ms 12280 KB Output is correct
27 Correct 268 ms 22136 KB Output is correct
28 Correct 239 ms 22264 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 10 ms 1280 KB Output is correct
37 Correct 244 ms 22172 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 0 ms 256 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 256 ms 22232 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 256 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 112 ms 12280 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 62 ms 5880 KB Output is correct
50 Correct 260 ms 22392 KB Output is correct
51 Correct 243 ms 22136 KB Output is correct
52 Correct 264 ms 22264 KB Output is correct
53 Correct 107 ms 12280 KB Output is correct
54 Correct 105 ms 12328 KB Output is correct
55 Correct 244 ms 22264 KB Output is correct
56 Correct 275 ms 22264 KB Output is correct
57 Correct 103 ms 12280 KB Output is correct
58 Correct 0 ms 256 KB Output is correct
59 Correct 1 ms 256 KB Output is correct
60 Correct 7 ms 1024 KB Output is correct
61 Correct 126 ms 12252 KB Output is correct
62 Correct 1 ms 256 KB Output is correct
63 Correct 0 ms 256 KB Output is correct
64 Correct 0 ms 384 KB Output is correct
65 Correct 62 ms 5880 KB Output is correct
66 Correct 107 ms 12280 KB Output is correct
67 Correct 107 ms 12280 KB Output is correct
68 Correct 103 ms 12284 KB Output is correct
69 Correct 102 ms 12280 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 13 ms 1280 KB Output is correct
7 Correct 257 ms 22264 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 1 ms 288 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 256 KB Output is correct
12 Correct 10 ms 1280 KB Output is correct
13 Correct 244 ms 22264 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 5 ms 896 KB Output is correct
17 Correct 119 ms 12280 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 62 ms 5880 KB Output is correct
21 Correct 247 ms 22264 KB Output is correct
22 Correct 244 ms 22140 KB Output is correct
23 Correct 269 ms 22360 KB Output is correct
24 Correct 243 ms 22264 KB Output is correct
25 Correct 108 ms 12280 KB Output is correct
26 Correct 107 ms 12280 KB Output is correct
27 Correct 268 ms 22136 KB Output is correct
28 Correct 239 ms 22264 KB Output is correct
29 Correct 2 ms 256 KB Output is correct
30 Correct 0 ms 256 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 0 ms 256 KB Output is correct
33 Correct 1 ms 256 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 10 ms 1280 KB Output is correct
37 Correct 244 ms 22172 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 0 ms 256 KB Output is correct
40 Correct 11 ms 1280 KB Output is correct
41 Correct 256 ms 22232 KB Output is correct
42 Correct 0 ms 384 KB Output is correct
43 Correct 0 ms 256 KB Output is correct
44 Correct 5 ms 896 KB Output is correct
45 Correct 112 ms 12280 KB Output is correct
46 Correct 0 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 62 ms 5880 KB Output is correct
50 Correct 260 ms 22392 KB Output is correct
51 Correct 243 ms 22136 KB Output is correct
52 Correct 264 ms 22264 KB Output is correct
53 Correct 107 ms 12280 KB Output is correct
54 Correct 105 ms 12328 KB Output is correct
55 Correct 244 ms 22264 KB Output is correct
56 Correct 275 ms 22264 KB Output is correct
57 Correct 103 ms 12280 KB Output is correct
58 Correct 0 ms 384 KB Output is correct
59 Correct 0 ms 256 KB Output is correct
60 Correct 0 ms 256 KB Output is correct
61 Correct 63 ms 5880 KB Output is correct
62 Correct 256 ms 22136 KB Output is correct
63 Correct 252 ms 22160 KB Output is correct
64 Correct 264 ms 22136 KB Output is correct
65 Correct 0 ms 256 KB Output is correct
66 Correct 74 ms 5880 KB Output is correct
67 Correct 246 ms 22136 KB Output is correct
68 Correct 243 ms 22136 KB Output is correct
69 Correct 270 ms 22264 KB Output is correct
70 Correct 1 ms 384 KB Output is correct
71 Correct 0 ms 256 KB Output is correct
72 Correct 0 ms 256 KB Output is correct
73 Correct 65 ms 5876 KB Output is correct
74 Correct 246 ms 22136 KB Output is correct
75 Correct 250 ms 22136 KB Output is correct
76 Correct 248 ms 22364 KB Output is correct
77 Correct 247 ms 22240 KB Output is correct
78 Correct 0 ms 256 KB Output is correct
79 Correct 1 ms 256 KB Output is correct
80 Correct 7 ms 1024 KB Output is correct
81 Correct 126 ms 12252 KB Output is correct
82 Correct 1 ms 256 KB Output is correct
83 Correct 0 ms 256 KB Output is correct
84 Correct 0 ms 384 KB Output is correct
85 Correct 62 ms 5880 KB Output is correct
86 Correct 107 ms 12280 KB Output is correct
87 Correct 107 ms 12280 KB Output is correct
88 Correct 103 ms 12284 KB Output is correct
89 Correct 102 ms 12280 KB Output is correct
90 Correct 0 ms 384 KB Output is correct
91 Correct 0 ms 256 KB Output is correct
92 Correct 5 ms 896 KB Output is correct
93 Correct 113 ms 12248 KB Output is correct
94 Correct 0 ms 384 KB Output is correct
95 Correct 1 ms 256 KB Output is correct
96 Correct 0 ms 256 KB Output is correct
97 Correct 27 ms 3328 KB Output is correct
98 Correct 112 ms 12280 KB Output is correct
99 Correct 105 ms 12280 KB Output is correct
100 Correct 108 ms 12280 KB Output is correct
101 Correct 110 ms 12280 KB Output is correct
102 Correct 113 ms 12280 KB Output is correct
103 Correct 113 ms 12280 KB Output is correct
104 Correct 115 ms 12300 KB Output is correct
105 Correct 116 ms 12280 KB Output is correct