oj.uz

Submission #789670

# Submission time Handle Problem Language Result Execution time Memory
789670 2023-07-21T17:14:13 Z FEDIKUS Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 153 ms 24056 KB 
#include "supertrees.h"
#include <vector>
#include<map>
#include<algorithm>

using namespace std;

const int maxn=1010;

int dsu[maxn];
int dsu2[maxn];

int cale(int a,int *dsu){
	return dsu[a]==a ? a:cale(dsu[a],dsu);
}
void join(int a,int b,int *dsu){
	dsu[cale(a,dsu)]=cale(b,dsu);
}

int construct(vector<vector<int>> p) {
	int n = p.size();
	vector<vector<int>> answer;
	for (int i = 0; i < n; i++) {
		vector<int> row;
		row.resize(n);
		answer.push_back(row);
	}

	for(int i=0;i<n;i++) dsu[i]=i;
	for(int i=0;i<n;i++) dsu2[i]=i;
	for(int i=0;i<n;i++){
		for(int j=0;j<i;j++){
			if(p[i][j]==1) join(i,j,dsu);
			if(p[i][j]==3) return 0;
		}
	}
	for(int i=0;i<n;i++){
		if(i!=cale(i,dsu)){
			answer[i][cale(i,dsu)]=1;
			answer[cale(i,dsu)][i]=1;
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<i;j++){
			if(p[i][j]==0) if(cale(i,dsu)==cale(j,dsu)) return 0;
			if(p[i][j]==2){
				if(cale(i,dsu)==cale(j,dsu)) return 0;
				join(cale(i,dsu),cale(j,dsu),dsu2);
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<i;j++){
			if(p[i][j]==0) if(cale(cale(i,dsu),dsu2)==cale(cale(j,dsu),dsu2)) return 0;
		}
	}
	map<int,vector<int> > kurac;
	for(int i=0;i<n;i++){
		kurac[cale(cale(i,dsu),dsu2)].push_back(cale(i,dsu));
	}
	for(auto i:kurac){
		sort(i.second.begin(),i.second.end());
		i.second.resize(unique(i.second.begin(),i.second.end())-i.second.begin());
		int prev=i.second.back();
		if(i.second.size()==2) return 0;
		for(int j:i.second){
			if(prev==j) break;
			if(prev!=-1){
				answer[prev][j]=1;
				answer[j][prev]=1;
			}
			prev=j;
		}
	}
	build(answer);
	return 1;
}

Subtask #1
11.0 / 11.0

# 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1120 KB Output is correct
7 Correct 151 ms 22092 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1120 KB Output is correct
7 Correct 151 ms 22092 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 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 140 ms 22148 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 67 ms 12044 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 35 ms 5716 KB Output is correct
21 Correct 142 ms 22012 KB Output is correct
22 Correct 142 ms 22088 KB Output is correct
23 Correct 143 ms 22024 KB Output is correct
24 Correct 143 ms 22136 KB Output is correct
25 Correct 63 ms 12040 KB Output is correct
26 Correct 66 ms 12028 KB Output is correct
27 Correct 145 ms 22012 KB Output is correct
28 Correct 143 ms 22020 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 0 ms 212 KB Output is correct
5 Correct 0 ms 292 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 6 ms 1236 KB Output is correct
9 Correct 144 ms 24056 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1200 KB Output is correct
13 Correct 152 ms 23920 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 816 KB Output is correct
17 Correct 68 ms 14056 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 37 ms 6212 KB Output is correct
22 Correct 142 ms 24008 KB Output is correct
23 Correct 143 ms 24012 KB Output is correct
24 Correct 149 ms 24048 KB Output is correct
25 Correct 65 ms 14072 KB Output is correct
26 Correct 65 ms 14028 KB Output is correct
27 Correct 143 ms 23920 KB Output is correct
28 Correct 145 ms 23924 KB Output is correct
29 Correct 68 ms 14072 KB Output is correct

Subtask #4
35.0 / 35.0

# 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 37 ms 5700 KB Output is correct
5 Correct 145 ms 22024 KB Output is correct
6 Correct 141 ms 22028 KB Output is correct
7 Correct 143 ms 22012 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 40 ms 5788 KB Output is correct
10 Correct 149 ms 22176 KB Output is correct
11 Correct 153 ms 22172 KB Output is correct
12 Correct 148 ms 22156 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 37 ms 5824 KB Output is correct
17 Correct 149 ms 22244 KB Output is correct
18 Correct 147 ms 22176 KB Output is correct
19 Correct 148 ms 22164 KB Output is correct
20 Correct 147 ms 22184 KB Output is correct

Subtask #5
21.0 / 21.0

# 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1120 KB Output is correct
7 Correct 151 ms 22092 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 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 140 ms 22148 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 67 ms 12044 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 35 ms 5716 KB Output is correct
21 Correct 142 ms 22012 KB Output is correct
22 Correct 142 ms 22088 KB Output is correct
23 Correct 143 ms 22024 KB Output is correct
24 Correct 143 ms 22136 KB Output is correct
25 Correct 63 ms 12040 KB Output is correct
26 Correct 66 ms 12028 KB Output is correct
27 Correct 145 ms 22012 KB Output is correct
28 Correct 143 ms 22020 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 0 ms 212 KB Output is correct
33 Correct 0 ms 292 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 6 ms 1236 KB Output is correct
37 Correct 144 ms 24056 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 6 ms 1200 KB Output is correct
41 Correct 152 ms 23920 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 816 KB Output is correct
45 Correct 68 ms 14056 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 37 ms 6212 KB Output is correct
50 Correct 142 ms 24008 KB Output is correct
51 Correct 143 ms 24012 KB Output is correct
52 Correct 149 ms 24048 KB Output is correct
53 Correct 65 ms 14072 KB Output is correct
54 Correct 65 ms 14028 KB Output is correct
55 Correct 143 ms 23920 KB Output is correct
56 Correct 145 ms 23924 KB Output is correct
57 Correct 68 ms 14072 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 3 ms 852 KB Output is correct
61 Correct 68 ms 14068 KB Output is correct
62 Correct 0 ms 212 KB Output is correct
63 Correct 1 ms 316 KB Output is correct
64 Correct 0 ms 256 KB Output is correct
65 Correct 36 ms 6252 KB Output is correct
66 Correct 65 ms 14028 KB Output is correct
67 Correct 66 ms 14056 KB Output is correct
68 Correct 65 ms 14072 KB Output is correct
69 Correct 67 ms 14116 KB Output is correct

Subtask #6
4.0 / 4.0

# 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 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1120 KB Output is correct
7 Correct 151 ms 22092 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 0 ms 212 KB Output is correct
12 Correct 6 ms 1108 KB Output is correct
13 Correct 140 ms 22148 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 3 ms 724 KB Output is correct
17 Correct 67 ms 12044 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 35 ms 5716 KB Output is correct
21 Correct 142 ms 22012 KB Output is correct
22 Correct 142 ms 22088 KB Output is correct
23 Correct 143 ms 22024 KB Output is correct
24 Correct 143 ms 22136 KB Output is correct
25 Correct 63 ms 12040 KB Output is correct
26 Correct 66 ms 12028 KB Output is correct
27 Correct 145 ms 22012 KB Output is correct
28 Correct 143 ms 22020 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 0 ms 212 KB Output is correct
33 Correct 0 ms 292 KB Output is correct
34 Correct 0 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 6 ms 1236 KB Output is correct
37 Correct 144 ms 24056 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 6 ms 1200 KB Output is correct
41 Correct 152 ms 23920 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 3 ms 816 KB Output is correct
45 Correct 68 ms 14056 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 37 ms 6212 KB Output is correct
50 Correct 142 ms 24008 KB Output is correct
51 Correct 143 ms 24012 KB Output is correct
52 Correct 149 ms 24048 KB Output is correct
53 Correct 65 ms 14072 KB Output is correct
54 Correct 65 ms 14028 KB Output is correct
55 Correct 143 ms 23920 KB Output is correct
56 Correct 145 ms 23924 KB Output is correct
57 Correct 68 ms 14072 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 0 ms 212 KB Output is correct
60 Correct 0 ms 212 KB Output is correct
61 Correct 37 ms 5700 KB Output is correct
62 Correct 145 ms 22024 KB Output is correct
63 Correct 141 ms 22028 KB Output is correct
64 Correct 143 ms 22012 KB Output is correct
65 Correct 0 ms 212 KB Output is correct
66 Correct 40 ms 5788 KB Output is correct
67 Correct 149 ms 22176 KB Output is correct
68 Correct 153 ms 22172 KB Output is correct
69 Correct 148 ms 22156 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 212 KB Output is correct
73 Correct 37 ms 5824 KB Output is correct
74 Correct 149 ms 22244 KB Output is correct
75 Correct 147 ms 22176 KB Output is correct
76 Correct 148 ms 22164 KB Output is correct
77 Correct 147 ms 22184 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 0 ms 212 KB Output is correct
80 Correct 3 ms 852 KB Output is correct
81 Correct 68 ms 14068 KB Output is correct
82 Correct 0 ms 212 KB Output is correct
83 Correct 1 ms 316 KB Output is correct
84 Correct 0 ms 256 KB Output is correct
85 Correct 36 ms 6252 KB Output is correct
86 Correct 65 ms 14028 KB Output is correct
87 Correct 66 ms 14056 KB Output is correct
88 Correct 65 ms 14072 KB Output is correct
89 Correct 67 ms 14116 KB Output is correct
90 Correct 0 ms 212 KB Output is correct
91 Correct 0 ms 212 KB Output is correct
92 Correct 3 ms 852 KB Output is correct
93 Correct 63 ms 14060 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 0 ms 212 KB Output is correct
96 Correct 1 ms 252 KB Output is correct
97 Correct 17 ms 3692 KB Output is correct
98 Correct 64 ms 14060 KB Output is correct
99 Correct 66 ms 14056 KB Output is correct
100 Correct 66 ms 14072 KB Output is correct
101 Correct 66 ms 14068 KB Output is correct
102 Correct 60 ms 14028 KB Output is correct
103 Correct 62 ms 14056 KB Output is correct
104 Correct 61 ms 14072 KB Output is correct
105 Correct 67 ms 14064 KB Output is correct